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5-277 ITEM 12 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5-277 ITEM 12: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: IRON. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-352-3445, 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
5-277 ITEM 12
NSN: 5340-01-352-3445
FSC: 5340 — Hardware, Commercial
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialIRON
NSN5340-01-352-3445
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5-277 ITEM 12 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
•
MATERIAL: IRON
TECHNICAL CHARACTERISTICS
MATERIALIRON
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 1
5-39MIL1-1003-12Reference 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 5-277 ITEM 12?
5-277 ITEM 12 is a COVER,ACCESS.
What parts can replace 5-277 ITEM 12?
There is 1 known substitute for 5-277 ITEM 12: 5-39MIL1-1003-12. Substitute compatibility should be verified for your specific system.
What is the NSN for 5-277 ITEM 12?
5-277 ITEM 12 is cataloged in the U.S. Government catalog under NSN 5340-01-352-3445. This indicates validated use in U.S. government and defense supply chains.
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