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88-20278 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

88-20278: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, shank_diameter: 0.630 INCHES NOMINAL IN, style_designator: FLANGED, end_item_identification: 6115012961463, GENERATOR SET, DIESEL ENGINE, outside/top_flange_diameter: 0.750 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: BUMPER, DOOR. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-532-0643, 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
88-20278
NSN: 5340-01-532-0643
FSC: 5340 — Hardware, Commercial
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialRUBBER
shank_diameter0.630 INCHES NOMINAL IN
style_designatorFLANGED
end_item_identification6115012961463, GENERATOR SET, DIESEL ENGINE
outside/top_flange_diameter0.750 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyBUMPER, DOOR
NSN5340-01-532-0643
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 88-20278 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: 0.630 INCHES NOMINAL IN
•
OUTSIDE/TOP FLANGE DIAMETER: 0.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLANGED
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.630 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.750 INCHES NOMINAL IN
STYLE DESIGNATORFLANGED
PART NAME ASSIGNED BY CONTROLLING AGENCYBUMPER, DOOR
END ITEM IDENTIFICATION6115012961463, GENERATOR SET, DIESEL ENGINE
MATERIALRUBBER
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 88-20278?
88-20278 is a BUMPER.
What is the NSN for 88-20278?
88-20278 is cataloged in the U.S. Government catalog under NSN 5340-01-532-0643. 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.