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5773203 — SEAL ASSEMBLY,SHAFT,SPRING LOADE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5773203: SEAL ASSEMBLY,SHAFT,SPRING LOADE.

SEAL ASSEMBLY,SHAFT,SPRING LOADE. Key specifications include special_features: MATERIAL: TITANIUM ASTM B367, end_item_identification: PUMP,FIRE,750-1000 GPM, motor-pump_design_control_activity: 53711. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-257-2344, 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
5773203
NSN: 4730-01-257-2344
NIINs: 012572344, 012698849, 014646088
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
special_featuresMATERIAL: TITANIUM ASTM B367
end_item_identificationPUMP,FIRE,750-1000 GPM
motor-pump_design_control_activity53711
NSN4730-01-257-2344
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5773203 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONNIMITZ CLASS CVN; EMORY S LAND CLASS AS; FORESTAL CLASS CV; MARS CLASS T-AFS 1; TICONDEROGA CLASS CG (47); ARLEIGH BURKE CLASS DDG; WICHITA CLASS AOR; FIRE PUMPS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5773203?
5773203 is a SEAL ASSEMBLY,SHAFT,SPRING LOADE.
What is the NSN for 5773203?
5773203 is cataloged in the U.S. Government catalog under NSN 4730-01-257-2344. 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.