Hofmann Fluid Power Inc.

Serving the Fluid Power Industry Since 1950

Series C

1/2″ Body Size • Maximum 300 PSI

Stainless steel coupling components are standard along with a sleeve guard style, safety vent and automatic one hand quick disconnects. Conforms to A-A59439 (formerly mil spec C-4109F) standards.



Sockets (Valved)

Only connect with one way or two way valved sockets.

STANDARD FNPT Series C — Industrial Interchange

 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-fnptFC31/2"3/8"1-1/8"1-1/16"3.5"1.3".57
FC41/2"1/2"1-1/8"1-1/16"3.50"1.3".53
FC51/2"3/4"1-1/8"1-3/16"3.75"1.3".56

BRASS FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-fnpt-brFC3-B1/2"3/8"1-1/8"1-1/16"3.5"1.3".57
FC4-B1/2"1/2"1-1/8"1-1/16"3.50"1.3".53
FC5-B1/2"3/4"1-1/8"1-3/16"3.75"1.3".56

ELECTROLESS NICKEL FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-fnpt-enFC3-EN1/2"3/8"1-1/8"1-1/16"3.5"1.3".57
FC4-EN1/2"1/2"1-1/8"1-1/16"3.50"1.3".53
FC5-EN1/2"3/4"1-1/8"1-3/16"3.75"1.3".56

AUTOMATIC Q SERIES FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-fnpt-qFC3-Q1/2"3/8"1-3/16"1-1/16"2.63"1.49".60
FC4-Q1/2"1/2"1-3/16"1-1/16"2.79"1.49”.60
FC5-Q1/2"3/4"1-3/16"1-3/16"2.92"1.49”.65

SAFETY EXHAUST FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-fnpt-safetySVFC31/2"3/8"-15/16"3.06"1.44".57
SVFC41/2"1/2"-1-1/16"3.16"1.44".60
SVFC51/2"3/4"-1-3/16"3.27"1.44".63

SLEEVE GUARD FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-fnpt-sgFC3-SG1/2"3/8"-1"2.74"1.19".46
FC4-SG1/2"1/2"-1"2.96"1.19".50
FC5-SG1/2"3/4"-1-3/16"3.15"1.24".63

STANDARD MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-mnptMC21/2"1/4"1-1/8"1-1/16"3.31"1.30".44
MC31/2"3/8"1-1/8"1-1/16"3.31"1.30".46
MC41/2"1/2"1-1/8"1-1/16"3.50"1.30".48
MC51/2"3/4"1-1/8"1-1/16"3.50"1.30".54

BRASS MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-mnpt-brMC2-B1/2"1/4"1-1/8"1-1/16"3.31"1.30".44
MC3-B1/2"3/8"1-1/8"1-1/16"3.31"1.30".46
MC4-B1/2"1/2"1-1/8"1-1/16"3.50"1.30".48
MC5-B1/2"3/4"1-1/8"1-1/16"3.50"1.30".54

ELECTROLESS NICKEL MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-mnptMC2-EN1/2"1/4"1-1/8"1-1/16"3.31"1.30".44
MC3-EN1/2"3/8"1-1/8"1-1/16"3.31"1.30".46
MC4-EN1/2"1/2"1-1/8"1-1/16"3.50"1.30".48
MC5-EN1/2"3/4"1-1/8"1-1/16"3.50"1.30".54

AUTOMATIC Q SERIES MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-mnpt-qMC2-Q1/2"1/4"1-3/16"1-1/16"2.64"1.49".53
MC3-Q1/2"3/8"1-3/16"1-1/16"2.70"1.49".54
MC4-Q1/2"1/2"1-3/16"1-1/16"2.74"1.49".55
MC5-Q1/2"3/4"1-3/16"1-1/16"2.85"1.49".62

SAFETY EXHAUST MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-mnpt-safetySVMC31/2"3/8"-15/16"3.15"1.44".56
SVMC41/2"1/2"-15/16"3.19"1.44".57
SVMC51/2"3/4"-1-1/16"3.40"1.44".64

SLEEVE GUARD MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-mnpt-sgMC3-SG1/2"3/8"-1"2.97"1.19".42
MC4-SG1/2"1/2"-1"3.08"1.19".47
MC5-SG1/2"3/4"-1-1/16"3.12"1.19".50

STANDARD HOSE BARB Series C — Industrial Interchange
 Part #Body SizeHose Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-hbSC31/2"3/8"1-1/8"1-1/16"3.75"1.3".46
SC41/2"1/2"1-1/8"1-1/16"3.75"1.3".45
SC51/2"3/4"1-1/8"1-1/16"3.75"1.3".48

BRASS HOSE BARB Series C — Industrial Interchange
 Part #Body SizeHose Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-hb-brSC3-B1/2"3/8"1-1/8"1-1/16"3.75"1.3".46
SC4-B1/2"1/2"1-1/8"1-1/16"3.75"1.3".45
SC5-B1/2"3/4"1-1/8"1-1/16"3.75"1.3".48

ELECTROLESS NICKEL HOSE BARB Series C — Industrial Interchange
 Part #Body SizeHose Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-hbSC3-EN1/2"3/8"1-1/8"1-1/16"3.75"1.3".46
SC4-EN1/2"1/2"1-1/8"1-1/16"3.75"1.3".45
SC5-EN1/2"3/4"1-1/8"1-1/16"3.75"1.3".48

AUTOMATIC Q SERIES HOSE BARB Series C — Industrial Interchange
 Part #Body SizeHose Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-hbSC3-Q1/2"3/8"1-3/16"1-1/16"3.14"1.49".53
SC4-Q1/2"1/2"1-3/16"1-1/16"3.34"1.49".55
SC5-Q1/2"3/4"1-3/16"1-1/16"3.65"1.49".61

SAFETY EXHAUST HOSE BARB Series C — Industrial Interchange
 Part #Body SizeHose Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-hb-safetySVSC33/8"3/8"-15/16"3.65"1.44".56
SVSC41/2"1/2"-15/16"3.84"1.44".57
SVSC53/4"3/4"-15/16"4.15"1.44".63

SLEEVE GUARD HOSE BARB Series C — Industrial Interchange
 Part #Body SizeHose Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-hb-sgSC3-SG1/2"3/8"-1"3.49"1.19".41
SC4-SG1/2"1/2"-1"3.14"1.19".43
SC5-SG1/2"3/4"-1"3.49"1.19".48

STANDARD Series C — Industrial Interchange
 Part #Body SizeHose ID x OD [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-reuseRKC371/2"3/8" X 5/8" 1-1/8"1-1/16"3.80"1.3".55
RKC381/2"3/8" X 11/16"1-1/8"1-1/16"3.80"1.3".54
RKC31/2"3/8" X 3/4"1-1/8"1-1/16"3.80"1.3".52
RKC431/2"1/2" x 13/16"1-1/8"1-1/16"4.25"1.3".65
RKC451/2"1/2" x 7/8"1-1/8"1-1/16"4.25"1.3".64
RKC471/2"1/2" x 15/161-1/8"1-1/16"4.25"1.3".62

BRASS Series C — Industrial Interchange
 Part #Body SizeHose ID x OD [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-reuse-brRKC37-B1/2"3/8" X 5/8" 1-1/8"1-1/16"3.80"1.3".55
RKC38-B1/2"3/8" X 11/16"1-1/8"1-1/16"3.80"1.3".54
RKC3-B1/2"3/8" X 3/4"1-1/8"1-1/16"3.80"1.3".52
RKC43-B1/2"1/2" x 13/16"1-1/8"1-1/16"4.25"1.3".65
RKC45-B1/2"1/2" x 7/8"1-1/8"1-1/16"4.25"1.3".64
RKC47-B1/2"1/2" x 15/161-1/8"1-1/16"4.25"1.3".62

ELECTROLESS NICKEL SERIES C — Industrial Interchange
 Part #Body SizeHose ID x OD [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-reuse-enRKC37-EN1/2"3/8" X 5/8" 1-1/8"1-1/16"3.80"1.3".55
RKC38-EN1/2"3/8" X 11/16"1-1/8"1-1/16"3.80"1.3".54
RKC3-EN1/2"3/8" X 3/4"1-1/8"1-1/16"3.80"1.3".52
RKC43-EN1/2"1/2" x 13/16"1-1/8"1-1/16"4.25"1.3".65
RKC45-EN1/2"1/2" x 7/8"1-1/8"1-1/16"4.25"1.3".64
RKC47-EN1/2"1/2" x 15/161-1/8"1-1/16"4.25"1.3".62

AUTOMATIC Q Series C — Industrial Interchange
 Part #Body SizeHose ID x OD [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
seriesc-reuse-qRKC37-Q1/2"3/8" X 5/8" 1-1/8"1-1/16"3.80"1.3".55
RKC38-Q1/2"3/8" X 11/16"1-1/8"1-1/16"3.80"1.3".54
RKC3-Q1/2"3/8" X 3/4"1-1/8"1-1/16"3.80"1.3".52
RKC43-Q1/2"1/2" x 13/16"1-1/8"1-1/16"4.25"1.3".65
RKC45-Q1/2"1/2" x 7/8"1-1/8"1-1/16"4.25"1.3".64
RKC47-Q1/2"1/2" x 15/161-1/8"1-1/16"4.25"1.3".62

FNPT Series C — Manual Style Sleeve — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
FC3-SS1/2"3/8"1-1/8"1-1/16"3.5"1.3"0.57
FC4-SS1/2"1/2"1-1/8"1-1/16"3.50"1.3"0.53
FC5-SS1/2"3/4"1-1/8"1-3/16"3.75"1.3"0.56

Series C-SG — Sleeve Guard Style — Industrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
FC4-SG-SS*1/2"1/2"1"3.06"1.24"0.56

Series CQ — Automatic Style Sleeve — Industrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
FC4-Q-SS*1/2"1/2"1-1/16"3.30"1.375"0.67

MNPT Series C — Manual Style Sleeve — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]Hex (2) Size [C]O.A.L. [D]Max OD [E]Weight Lbs.
MC2-SS1/2"1/4"1-1/8"1-1/16"3.31"1.30"0.44
MC3-SS1/2"3/8"1-1/8"1-1/16"3.31"1.30"0.46
MC4-SS1/2"1/2"1-1/8"1-1/16"3.50"1.30"0.48
MC5-SS1/2"3/4"1-1/8"1-1/16"3.50"1.30"0.54

Series C-SG — Sleeve Guard Style — Industrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
MC4-SG-SS*1/2"1/2"1"3.07"1.19"0.47

Series CQ — Automatic Style Sleeve — In dustrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
MC4-Q-SS*1/2"1/2"1-1/16"3.17"1.34"0.62

 Part #Body SizeHose Size [A]Hex Size 1 [B]Hex Size 2 [C]O.A.L. [D]Max O.D. [E]Weight Lbs.
SC3-SS1/2"3/8"1-1/8"1-1/16"3.75"1.3".46
SC4-SS1/2"1/2"1-1/8"1-1/16"3.75"1.3".45
SC5-SS1/2"3/4"1-1/8"1-1/16"3.75"1.3".48

 Part #Body SizeHose Size [A]Hex Size 1 [B]O.A.L. [D]Max O.D. [E]Weight Lbs.
SC4-SG-SS*1/2"1/2"1"3.49"1.19".43

 Part #Body SizeHose Size [A]Hex Size 1 [B]O.A.L. [D]Max O.D. [E]Weight Lbs.
SC4-Q-SS*1/2"1/2"1-1/16"3.51"1.34".59

 Part #Body SizeHose Size [A]Hex Size 1 [B]Hex Size 2 [C]O.A.L. [D]Max O.D. [E]Weight Lbs.
SC3-PL-SS1/2"3/8"1-1/8"1-1/16"3.75"1.3".48
SC4-PL-SS1/2"1/2"1-1/8"1-1/16"3.75"1.3".48
SC5-PL-SS1/2"3/4"1-1/8"1-1/16"3.75"1.3".51

 Part #Body SizeHose Size [A]
I.D. x O.D.
Hex Size 1 [B]Hex Size 2 [C]O.A.L. [D]Max O.D. [E]Weight Lbs.
RKC37-SS1/2"3/8" X 5/8"1-1/8"1-1/16"3.80"1.3".55
RKC38-SS1/2"3/8" X 11/16"1-1/8"1-1/16"3.80"1.3".54
RKC3-SS1/2"3/8" X 3/4"1-1/8"1-1/16"3.80"1.3".52
RKC43-SS1/2"1/2" X 13/16"1-1/8"1-1/16"4.25"1.3".65
RKC45-SS1/2"1/2" X 7/8"1-1/8"1-1/16"4.25"1.3".64
RKC47-SS1/2"1/2" X 15/16"1-1/8"1-1/16"4.25"1.3".62

Plugs (Unvalved)


FNPT Series C — Industrial Interchange

 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
seriesc-fnpt-plugs-unvalvedFPC31/2"3/8"3/4"2.25".12
FPC41/2"1/2"15/16"2.25".17
FPC51/2"3/4"1-3/16"2.33".26

FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
seriesc-fnpt-plugs-unvalved-brFPC4-B1/2"1/2"15/16"2.25".17
FPC5-B1/2"3/4"1-3/16"2.33".26

FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
seriesc-fnpt-plugs-unvalved-enFPC3-EN1/2"3/8"3/4"2.25".12
FPC4-EN1/2"1/2"15/16"2.25".17
FPC5-EN1/2"3/4"1-3/16"2.33".26

MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
seriesc-mnpt-plugs-unvalvedMPC31/2"3/8"11/16"2.20.16
MPC41/2"1/2"7/8"2.35.18
MPC51/2"3/4"1-1/16"2.54.24

MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
brass-mnpt-6MPC3-B1/2"3/8"11/16"2.20.16
MPC4-B1/2"1/2"7/8"2.35.18
MPC5-B1/2"3/4"1-1/16"2.54.24

MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
seriesc-mnpt-plugs-unvalvedMPC3-EN1/2"3/8"11/16"2.20.16
MPC4-EN1/2"1/2"7/8"2.35.18
MPC5-EN1/2"3/4"1-1/16"2.54.24

Hose Barb Series C — Industrial Interchange
 Part #Body SizeThread Size [A] Hub Size [B]O.A.L. [C]Weight Lbs.
seriesc-hb-plugs-unvalvedSPC31/2"3/8"11/16"2.54.10
SPC41/2"1/2"11/16"2.54.12
SPC51/2"3/4"15/16"3.00.25

Hose Barb Series C — Industrial Interchange
 Part #Body SizeThread Size [A] Hub Size [B]O.A.L. [C]Weight Lbs.
seriesc-hb-plugs-unvalved-brSPC3-B1/2"3/8"11/16"2.54.10
SPC4-B1/2"1/2"11/16"2.54.12
SPC5-B1/2"3/4"15/16"3.00.25

Hose Barb Series C — Industrial Interchange
 Part #Body SizeThread Size [A] Hub Size [B]O.A.L. [C]Weight Lbs.
seriesc-hb-plugs-unvalvedSPC3-EN1/2"3/8"11/16"2.54.10
SPC4-EN1/2"1/2"11/16"2.54.12
SPC5-EN1/2"3/4"15/16"3.00.25

FNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
FPC3-SS1/2"3/8"3/4"2.25".12
FPC4-SS1/2"1/2"15/16"2.25".17
FPC5-SS1/2"3/4"1-3/16"2.33".26

MNPT Series C — Industrial Interchange
 Part #Body SizeThread Size [A]Hex (1) Size [B]O.A.L. [C]Weight Lbs.
MPC2-SS1/2"1/4"11/16"2.30".14
MPC3-SS1/2"3/8"11/16"2.30".16
MPC4-SS1/2"1/2"7/8"2.30".16
MPC5-SS1/2"3/4"1-1/16"2.54".24

Barb Series C — Industrial Interchange
 Part #Body SizeBarb Size [A]HUB DIA. [B]O.A.L. [C]Weight Lbs.
SPC3-SS1/2"3/8"11/16"2.54".10
SPC4-SS1/2"1/2"11/16"2.54".12
SPC5-SS1/2"3/4"1.0"2.54".18


 AIR FLOW – CFMWATER FLOW
100 PSIG80 PSIGGPM – 60 PSIG
Pressure DropPressure Drop
 10 PSIG5 PSIG10 PSIG5 PSIG10 PSIG5 PSIG
Series A362633243.72.5
Series B 685062456.85
Series C 1189010782118
Series D 1901351721222216



Socket Construction

Standard
Steel Sleeve
Brass Barrel
Brass Adapter
440 Stainless Balls
302 Stainless Springs Steel Valve
Buna Rubber Washer
Brass
Brass Sleeve
Brass Barrel
Brass Adapter
302 Stainless Balls
302 Stainless Springs
Brass Valve
Buna Rubber Washer
Sleeve Guard
Brass Sleeve
Brass Barrel
Brass Adapter
Steel Springs
Steel Valve
Buna Rubber Washer
Electroless Nickel Plated
Electroless Nickel Brass Slv Electroless Nickel Brass Barrel
Electroless Nickel Brass Adapter 302 Stainless Balls
302 Stainless Springs
303 Stainless Valve
Buna Rubber Washer
Stainless
303 Stainless Sleeve
303 Stainless Barrel
303 Stainless Adapter
302 Stainless Balls
302 Stainless Springs
303 Stainless Valve
Buna Rubber Washer
Automatic Q Series
Brass Sleeve
Brass Barrel
Brass Adapter
416 Stainless Pins
302 Stainless Springs
Steel Valve
Buna Rubber Washer
Safety Exhaust
Steel Sleeve
Steel Barrel
Steel Adapter
Steel Pins
302 Stainless Springs
Steel Valve
Buna Rubber Washer

Plug Construction

Standard
Heat Treated Steel
Corrosion Resistant Plating
Brass
All Solid Brass Construction
Electroless Nickel Plate
Electroless Nickel
Plated Brass

Stainless
Type 303 Stainless Steel