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Technical Data Sheet
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300257 — CABLE ASSEMBLY,SPECIAL PURPOSE,E

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

300257: CABLE ASSEMBLY,SPECIAL PURPOSE,E.

CABLE ASSEMBLY,SPECIAL PURPOSE,E. This part is cataloged in the U.S. Government catalog under NSN 5340-01-242-0562, 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
300257
NSN: 5340-01-242-0562
NIINs: 012420562, 012974060, 016917483
FSC: 5340 — Hardware, Commercial
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
Part Number300257
NSN5340-01-242-0562
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 300257 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
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
SUBSTITUTES & CROSS-REFERENCES 1
3000257Reference 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 300257?
300257 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 300257?
There is 1 known substitute for 300257: 3000257. Substitute compatibility should be verified for your specific system.
What is the NSN for 300257?
300257 is cataloged in the U.S. Government catalog under NSN 5340-01-242-0562. This indicates validated use in U.S. government and defense supply chains.
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