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21387-1 — GASKET,FUEL BOX COVER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

21387-1: GASKET,FUEL BOX COVER.

The GASKET,FUEL BOX COVER is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5360-00-057-4166, 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
21387-1
NSN: 5360-00-057-4166
NIINs: 000574166, 006590551
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 96487 — VALCOR ENGINEERING CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionMATL: RUBBER PER MIL-R-6855 CLASS I; CONTROLLING SPEC SOLAR 9-4; BRAND PER SPEC SOLAR 9-6,B CLASS G; DIM.: 1.00 IN. NOM OD IN
NSN5360-00-057-4166
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GASKET,FUEL BOX COVER TITLE COMPONENT PN 21387-1 MFR GASKET,FUEL BOX COVER
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 1.050 INCHES NOMINAL IN
•
LOAD RATING: 402.000 POUNDS MINIMUM AND 458.000 POUNDS MAXIMUM LBS
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING SOLID LENGTH: 2.660 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 3.111 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER1.050 INCHES NOMINAL IN
LOAD RATING402.000 POUNDS MINIMUM AND 458.000 POUNDS MAXIMUM LBS
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING SOLID LENGTH2.660 INCHES MAXIMUM IN
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH3.111 INCHES NOMINAL IN
INSIDE DIAMETER0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
SPRING LENGTH UNDER LOAD2.705 INCHES NOMINAL IN
SPRING SOLID OUTSIDE DIAMETER1.050 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21387-1?
21387-1 is a GASKET,FUEL BOX COVER.
What is the NSN for 21387-1?
21387-1 is cataloged in the U.S. Government catalog under NSN 5360-00-057-4166. 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.