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78X4 — COUPLING,CLAMP,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

78X4: COUPLING,CLAMP,PIPE.

The COUPLING,CLAMP,PIPE is a the manufacturer industrial component. Key specifications include material: RUBBER GASKET, pipe_size_accommodated: 4.000 INCHES NOMINAL IN, working_pressure_rating: 300.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, end_type_for_which_designed: GROOVED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-445-9012, 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
78X4
NSN: 4730-01-445-9012
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79154 — VICTAULIC COMPANY OF AMERICA INC DBA VICTAULIC COMPANY OF AMERICA (USA)
SPECIFICATIONS
materialRUBBER GASKET
segment_quantity4
pipe_size_accommodated4.000 INCHES NOMINAL IN
working_pressure_rating300.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
end_type_for_which_designedGROOVED
NSN4730-01-445-9012
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 78X4 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
PIPE SIZE ACCOMMODATED: 4.000 INCHES NOMINAL IN
•
END TYPE FOR WHICH DESIGNED: GROOVED
•
WORKING PRESSURE RATING: 300.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
SEGMENT QUANTITY: 4
•
MATERIAL: STEEL HOUSING
TECHNICAL CHARACTERISTICS
PIPE SIZE ACCOMMODATED4.000 INCHES NOMINAL IN
END TYPE FOR WHICH DESIGNEDGROOVED
WORKING PRESSURE RATING300.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
SEGMENT QUANTITY4
MATERIALSTEEL HOUSING
MATERIALRUBBER GASKET
SUBSTITUTES & CROSS-REFERENCES 2
9434412Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
9434412-7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78X4?
78X4 is a COUPLING,CLAMP,PIPE.
What parts can replace 78X4?
There are 2 known substitutes for 78X4: 9434412, 9434412-7. Substitute compatibility should be verified for your specific system.
What is the NSN for 78X4?
78X4 is cataloged in the U.S. Government catalog under NSN 4730-01-445-9012. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.