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5545674 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5545674: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYURETHANE, overall_width: 2.230 INCHES NOMINAL IN, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 2.230 INCHES NOMINAL IN, special_features: FASTENING DEVICE: ONE AXIAL MTG HOLE 1.250 IN. DIA IN, style_designator: RECTANGULAR.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-278-0014, 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
5545674
NSN: 5340-01-278-0014
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYURETHANE
overall_width2.230 INCHES NOMINAL IN
overall_height1.000 INCHES NOMINAL IN
overall_length2.230 INCHES NOMINAL IN
special_featuresFASTENING DEVICE: ONE AXIAL MTG HOLE 1.250 IN. DIA IN
style_designatorRECTANGULAR
material_hardness_rating90.0 SHORE DUROMETER A NOMINAL
NSN5340-01-278-0014
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5545674 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
•
MATERIAL HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL: PLASTIC POLYURETHANE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.000 INCHES NOMINAL IN
MATERIAL HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
STYLE DESIGNATORRECTANGULAR
OVERALL LENGTH2.230 INCHES NOMINAL IN
OVERALL WIDTH2.230 INCHES NOMINAL IN
SPECIAL FEATURESFASTENING DEVICE: ONE AXIAL MTG HOLE 1.250 IN. DIA IN
MATERIALPLASTIC POLYURETHANE
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
5545674-1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 5545674?
5545674 is a BUMPER.
What parts can replace 5545674?
There is 1 known substitute for 5545674: 5545674-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 5545674?
5545674 is cataloged in the U.S. Government catalog under NSN 5340-01-278-0014. 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.