257389 L1 — PLUG,SEAT RETAINING

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

257389 L1: PLUG,SEAT RETAINING.

The PLUG,SEAT RETAINING is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-240-5536, 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

257389 L1

NSN: 4820-01-240-5536
FSC: 4820 — Valves, Nonpowered
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)

SPECIFICATIONS

criticality_code_justification	ZZZY
reference_number_differentiating_characteristics	QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN	4820-01-240-5536

COMPONENT DIAGRAM

KEY FEATURES

•

CRITICALITY CODE JUSTIFICATION: ZZZY

•

REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

TECHNICAL CHARACTERISTICS

CRITICALITY CODE JUSTIFICATION	ZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS

SUBSTITUTES & CROSS-REFERENCES 3

257388, PIECE 2 L1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

257389Reference document

Same NSN cross-reference

Reference document — Secondary reference

257388, PIECE 2Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 257389 L1?

257389 L1 is a PLUG,SEAT RETAINING.

What parts can replace 257389 L1?

There are 3 known substitutes for 257389 L1: 257388, PIECE 2 L1, 257389, 257388, PIECE 2. Substitute compatibility should be verified for your specific system.

What is the NSN for 257389 L1?

257389 L1 is cataloged in the U.S. Government catalog under NSN 4820-01-240-5536. This indicates validated use in U.S. government and defense supply chains.

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257389 L1 — PLUG,SEAT RETAINING

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