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74A450689-2001 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

74A450689-2001: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: PLASTIC, shank_length: 0.340 INCHES NOMINAL IN, hole_diameter: 0.060 INCHES NOMINAL IN, overall_height: 0.480 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, shank_diameter: 0.315 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN, end_item_identification: W/S: AIRCRAFT, HORNET F/A-18. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-109-0688, 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
74A450689-2001
NSN: 5340-01-109-0688
FSC: 5340 — Hardware, Commercial
CAGE: 2M490 — NASSAU TOOL WORKS, INC (USA)
SPECIFICATIONS
materialPLASTIC
shank_length0.340 INCHES NOMINAL IN
hole_diameter0.060 INCHES NOMINAL IN
overall_height0.480 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
shank_diameter0.315 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
end_item_identificationW/S: AIRCRAFT, HORNET F/A-18
outside/top_flange_diameter0.620 INCHES NOMINAL IN
material_document_and_classificationL-P-410 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-109-0688
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 74A450689-2001 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
KEY FEATURES
•
SHANK DIAMETER: 0.315 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
•
OUTSIDE/TOP FLANGE DIAMETER: 0.620 INCHES NOMINAL IN
•
SHANK LENGTH: 0.340 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: PLASTIC
•
HOLE DIAMETER: 0.060 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.315 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
OVERALL HEIGHT0.480 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
OUTSIDE/TOP FLANGE DIAMETER0.620 INCHES NOMINAL IN
SHANK LENGTH0.340 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-410 FED SPEC SINGLE MATERIAL RESPONSE
END ITEM IDENTIFICATIONW/S: AIRCRAFT, HORNET F/A-18
MATERIALPLASTIC
HOLE DIAMETER0.060 INCHES NOMINAL IN
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 1
10117644Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74A450689-2001?
74A450689-2001 is a BUMPER.
What parts can replace 74A450689-2001?
There is 1 known substitute for 74A450689-2001: 10117644. Substitute compatibility should be verified for your specific system.
What is the NSN for 74A450689-2001?
74A450689-2001 is cataloged in the U.S. Government catalog under NSN 5340-01-109-0688. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.