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Technical Data Sheet
SC-C-681520 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The STRAP,RETAINING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-421-9488, 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
SC-C-681520
NSN: 5340-01-421-9488
FSC: 5340
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
Part NumberSC-C-681520
NSN5340-01-421-9488
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SC-C-681520 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
3770605Upgraded Successor
successor cross-reference
successor
3046Upgraded Successor
successor cross-reference
successor
140-00Interchangeable
interchangeable cross-reference
interchangeable
1413Interchangeable
interchangeable cross-reference
interchangeable
WF803TYPE2Interchangeable
interchangeable cross-reference
interchangeable
6005Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC-C-681520?
SC-C-681520 is a STRAP,RETAINING.
What parts can replace SC-C-681520?
There are 20 known substitutes for SC-C-681520: 3770605, 3046, 140-00 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC-C-681520?
SC-C-681520 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-421-9488. This indicates validated use in U.S. government and defense supply chains.
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