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21880390 — STRAINER ELEMENT,SEDIMENT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

21880390: STRAINER ELEMENT,SEDIMENT.

The STRAINER ELEMENT,SEDIMENT is a the manufacturer industrial component. Key specifications include special_features: SALT WATER SUPPLY TO DIESEL ENGINE, end_item_identification: SEA WATER PUMP SYSTEM. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-515-7291, 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
21880390
NSN: 4730-01-515-7291
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 61724 — VOLVO PENTA OF THE AMERICAS INC (USA)
SPECIFICATIONS
special_featuresSALT WATER SUPPLY TO DIESEL ENGINE
end_item_identificationSEA WATER PUMP SYSTEM
NSN4730-01-515-7291
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21880390 · 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
SPECIAL FEATURESSALT WATER SUPPLY TO DIESEL ENGINE
END ITEM IDENTIFICATIONSEA WATER PUMP SYSTEM
SUBSTITUTES & CROSS-REFERENCES 3
860687-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
21641739Reference document
Same NSN cross-reference
Reference document — Secondary reference
860687Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21880390?
21880390 is a STRAINER ELEMENT,SEDIMENT.
What parts can replace 21880390?
There are 3 known substitutes for 21880390: 860687-3, 21641739, 860687. Substitute compatibility should be verified for your specific system.
What is the NSN for 21880390?
21880390 is cataloged in the U.S. Government catalog under NSN 4730-01-515-7291. 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.