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264378 — SEAL,AIR,AIRCRAFT GAS TURBINE EN

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

264378: SEAL,AIR,AIRCRAFT GAS TURBINE EN.

SEAL,AIR,AIRCRAFT GAS TURBINE EN. Key specifications include pump_type: AXIAL PISTON, accumulator: NOT INCLUDED, portability: NONPORTABLE, fluid_filter: INCLUDED, pump_drive_type: ELECTRIC MOTOR, special_features: MAIN PUMP AND FILTER ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-289-4051, 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
264378
NSN: 4730-00-289-4051
NIINs: 002894051, 005681252
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
pump_typeAXIAL PISTON
accumulatorNOT INCLUDED
portabilityNONPORTABLE
fluid_filterINCLUDED
pump_quantity4
pump_drive_typeELECTRIC MOTOR
special_featuresMAIN PUMP AND FILTER ASSEMBLY
fluid_filter_typePRESSURE
operating_pressure3250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
manifolding_hose_setNOT INCLUDED
end_item_identificationNAVY WEAPONS SYSTEM JK, WASP CLASS LHD
hydraulic_fluid_flow_rate69.0 GALLONS PER MINUTE
NSN4730-00-289-4051
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 264378 · 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
SUBSTITUTES & CROSS-REFERENCES 4
49128HReference document
Same NSN cross-reference
Reference document — Secondary reference
A-33060-XReference document
Same NSN cross-reference
Reference document — Secondary reference
202915Reference document
Same NSN cross-reference
Reference document — Secondary reference
1-CG-0402Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 264378?
264378 is a SEAL,AIR,AIRCRAFT GAS TURBINE EN.
What parts can replace 264378?
There are 4 known substitutes for 264378: 49128H, A-33060-X, 202915 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 264378?
264378 is cataloged in the U.S. Government catalog under NSN 4730-00-289-4051. 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.