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Technical Data Sheet
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93957-991 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

93957-991: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-303-3883, 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
93957-991
NSN: 5340-01-303-3883
FSC: 5340 — Hardware, Commercial
CAGE: 0BAT5 — U.S. DEFENSE SERVICES, INC. DBA USDS (USA)
SPECIFICATIONS
Part Number93957-991
NSN5340-01-303-3883
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 93957-991 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
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 2
4538741-166Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
601 202 08 40Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 93957-991?
93957-991 is a BRACKET,MOUNTING.
What parts can replace 93957-991?
There are 2 known substitutes for 93957-991: 4538741-166, 601 202 08 40. Substitute compatibility should be verified for your specific system.
What is the NSN for 93957-991?
93957-991 is cataloged in the U.S. Government catalog under NSN 5340-01-303-3883. This indicates validated use in U.S. government and defense supply chains.
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