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54284 — PARTS KIT,SEAL REPLACEMENT,MECHA

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

54284: PARTS KIT,SEAL REPLACEMENT,MECHA.

PARTS KIT,SEAL REPLACEMENT,MECHA. Key specifications include end_item_identification: 417 FT NSC (WMSL-750) COAST GUARD VESSELS FT. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-315-7090, 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
54284
NSN: 5305-01-315-7090
NIINs: 013157090, 015620083
FSC: 5305 — Screws
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
end_item_identification417 FT NSC (WMSL-750) COAST GUARD VESSELS FT
NSN5305-01-315-7090
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 54284 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: NICKEL ALLOY R-405 OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
MATERIALNICKEL ALLOY R-405 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
0604SSCMBBReference document
Same NSN cross-reference
Reference document — Design control — primary reference
J-429PC26Reference document
Same NSN cross-reference
Reference document — Secondary 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 54284?
54284 is a PARTS KIT,SEAL REPLACEMENT,MECHA.
What parts can replace 54284?
There are 2 known substitutes for 54284: 0604SSCMBB, J-429PC26. Substitute compatibility should be verified for your specific system.
What is the NSN for 54284?
54284 is cataloged in the U.S. Government catalog under NSN 5305-01-315-7090. 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.