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3977-E ITEM 13 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3977-E ITEM 13: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-124-5714, 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
3977-E ITEM 13
NSN: 5331-01-124-5714
FSC: 5331 — O-ring
CAGE: 10055 — MARINE ELECTRONICS, LLC SALES (USA)
SPECIFICATIONS
Part Number3977-E ITEM 13
NSN5331-01-124-5714
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3977-E ITEM 13 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
SUBSTITUTES & CROSS-REFERENCES 1
CI-0010Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3977-E ITEM 13?
3977-E ITEM 13 is a O-RING.
What parts can replace 3977-E ITEM 13?
There is 1 known substitute for 3977-E ITEM 13: CI-0010. Substitute compatibility should be verified for your specific system.
What is the NSN for 3977-E ITEM 13?
3977-E ITEM 13 is cataloged in the U.S. Government catalog under NSN 5331-01-124-5714. This indicates validated use in U.S. government and defense supply chains.
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