Hofmann Fluid Power Inc.

Serving the Fluid Power Industry Since 1950

Series D

3/4″ Body Size • Maximum 300 PSI

The mating plugs are 360 brass, heat treated, plated steel, or 303 stainless steel. 316 stainless steel is also available. Conforms to A-A59439 (formerly mil spec C-4109F) standards.


Sockets (Valved)

Only connect with one way or two way valved sockets.
Sockets (Valved) Brass FPT Series D — Industrial Interchange

 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
seriesd-fptFD4-Q3/4"1/2"1.31"2.67"1.84"0.92
FD5-Q3/4"3/4"1.31"2.88"1.84"0.93
FD6-Q3/4"1"1.31"3.12"1.84"1.11

Safety Exhaust Brass FPT Series D — Industrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
seriesd-fpt-safetySVFD53/4"3/4"1.31"3.38"1.84"0.91
SVFD63/4"1"1.56"3.63"1.84"1.07

Sockets (Valved) Brass MPT Series D — Industrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
seriesd-mptMD4-Q3/4"1/2"1.31"2.75"1.84"0.81
MD5-Q3/4"3/4"1.31"2.90" 1.84"0.85
MD6-Q3/4"1"1.31"3.08"1.84"0.99

Safety Exhaust Brass MPT Series D — Industrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
seriesd-mpt-safetySVMD53/4"3/4"1.18"3.56" 1.69"0.87
SVMD63/4"1"1.31"3.75"1.69"1.05

Sockets (Valved) Brass Hose Barb Series D — Industrial Interchange
 Part #Body SizeHose I.D.Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
socket_hbSD4-Q3/4"1/2"1.31"3.33"1.84"0.81
SD5-Q3/4"3/4"1.31"3.65"1.84"0.86
SD6-Q3/4"1"1.31"3.83"1.84"1.00

Safety Exhaust Brass Hose Barb Series D — Industrial Interchange
 Part #Body SizeHose I.D.Hex Size [B]O.A.L. [D]Max OD [E]Weight Lbs.
seriesd-fpt-safetySVSD53/4"3/4"1.18"4.53"1.69"0.94

Plugs (Unvalved)

Plugs (Unvalved) Brass FPT Series D — Industrial Interchange

 Part #Body SizeThread Size [A]Hex Size [B]O.A.L. [C]Max OD [D] Weight Lbs.
seriesd-plug-fptFPD43/4"1/2"1"1.97"1.16"0.21
FPD53/4"3/4"1-3/16"2.08"1.37"0.24
FPD63/4"1"1-9/16"2.41"1.80"0.52

Plugs (Unvalved) Brass MPT Series D — Industrial Interchange
 Part #Body SizeThread Size [A]Hex Size [B] O.A.L. [C]Max OD [D]Weight Lbs.
seriesd-plug-mptMPD43/4"1/2"15/16"2.15"1.09"0.20
MPD53/4"3/4"1-1/16"2.34"1.23"0.26
MPD63/4"1"1-5/16"2.53"1.52"0.38

Plugs (Unvalved) Hose Barb Series D — Industrial Interchange
 Part #Body SizeHose I.D. [A]O.A.L. [C]Max OD [D]Weight Lbs.
seriesd-plug-hbSPD43/4"1/2"2.62"2.62"0.19
SPD53/4"3/4"2.98"2.98"0.25
SPD63/4"1"3.18"3.18"0.38


 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

Plug Construction

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

Standard
Steel
Zinc Plated