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Technical Data Sheet
PartsTable / COMPONENT / 77426
77426 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include overall_length: 1.500 INCHES NOMINAL IN, connection_type: THREADED INTERNAL HOSE FIRST END, end_connection_design: STRAIGHT FIRST END, end_item_identification: 4320-01-181-3983, media_for_which_designed: BRAKE FLUID, NONMINERAL OIL SINGLE RESPONSE, measuring_method_and_length: 18.250 INCHES NOMINAL OVERALL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-306-6812, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
77426
NSN: 4720-01-306-6812
FSC: 4720
CAGE: 14894 — ALLIED AUTOMOTIVE ALLIED AFTERMARKET DIV (USA)
SPECIFICATIONS
overall_length1.500 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL HOSE FIRST END
end_connection_designSTRAIGHT FIRST END
end_item_identification4320-01-181-3983
media_for_which_designedBRAKE FLUID, NONMINERAL OIL SINGLE RESPONSE
measuring_method_and_length18.250 INCHES NOMINAL OVERALL IN
NSN4720-01-306-6812
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 77426 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION TYPE: THREADED INTERNAL HOSE FIRST END
•
MEDIA FOR WHICH DESIGNED: BRAKE FLUID, NONMINERAL OIL SINGLE RESPONSE
•
MEASURING METHOD AND LENGTH: 18.250 INCHES NOMINAL OVERALL IN
•
END CONNECTION DESIGN: STRAIGHT FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL HOSE FIRST END
MEDIA FOR WHICH DESIGNEDBRAKE FLUID, NONMINERAL OIL SINGLE RESPONSE
MEASURING METHOD AND LENGTH18.250 INCHES NOMINAL OVERALL IN
END CONNECTION DESIGNSTRAIGHT FIRST END
END ITEM IDENTIFICATIONGENERAL MOTORS CORPORATION,1983-86 3/4-1T,TRUCK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
289Interchangeable
interchangeable cross-reference
interchangeable
GGG-V-410Interchangeable
interchangeable cross-reference
interchangeable
GGG-V-410 TY4Interchangeable
interchangeable cross-reference
interchangeable
5120-00-293-0110Interchangeable
interchangeable cross-reference
interchangeable
GPW9585Interchangeable
interchangeable cross-reference
interchangeable
116154Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77426?
77426 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 77426?
There are 14 known substitutes for 77426: 289, GGG-V-410, GGG-V-410 TY4 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77426?
77426 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-306-6812. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026