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7521667 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7521667: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL, body_thickness: 1.375 INCHES NOMINAL IN, outside_diameter: 0.406 INCHES NOMINAL IN, securing_device_type: SPECIAL, end_item_identification: 7310-255-8068. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-752-1667, 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
7521667
NSN: 5340-00-752-1667
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
body_thickness1.375 INCHES NOMINAL IN
outside_diameter0.406 INCHES NOMINAL IN
securing_device_typeSPECIAL
end_item_identification7310-255-8068
NSN5340-00-752-1667
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7521667 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE DIAMETER: 0.406 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: SPECIAL
•
MATERIAL: STEEL
•
BODY THICKNESS: 1.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.406 INCHES NOMINAL IN
SECURING DEVICE TYPESPECIAL
END ITEM IDENTIFICATION7310-255-8068
MATERIALSTEEL
BODY THICKNESS1.375 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 3
632D6Reference document
Same NSN cross-reference
Reference document — Secondary reference
2530007521667Reference document
Same NSN cross-reference
Reference document — Secondary reference
801E514Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7521667?
7521667 is a COVER,ACCESS.
What parts can replace 7521667?
There are 3 known substitutes for 7521667: 632D6, 2530007521667, 801E514. Substitute compatibility should be verified for your specific system.
What is the NSN for 7521667?
7521667 is cataloged in the U.S. Government catalog under NSN 5340-00-752-1667. 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.