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Technical Data Sheet
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178C4945P2 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

178C4945P2: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-00-251-4296, 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
178C4945P2
NSN: 5340-00-251-4296
FSC: 5340 — Hardware, Commercial
CAGE: 89954 — BAE SYSTEMS CONTROLS INC. (USA)
SPECIFICATIONS
Part Number178C4945P2
NSN5340-00-251-4296
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 178C4945P2 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 5
440398-209Reference document
Same NSN cross-reference
Reference document — Secondary reference
U9745-SS-0632-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
6010666-002Reference document
Same NSN cross-reference
Reference document — Secondary reference
9745-SS-0632-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
59518-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 178C4945P2?
178C4945P2 is a STANDOFF,THREADED,SPACING.
What parts can replace 178C4945P2?
There are 5 known substitutes for 178C4945P2: 440398-209, U9745-SS-0632-7, 6010666-002 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 178C4945P2?
178C4945P2 is cataloged in the U.S. Government catalog under NSN 5340-00-251-4296. This indicates validated use in U.S. government and defense supply chains.
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