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9540K48 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9540K48: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include shape: CIRCULAR, diameter: 0.875 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING SUPPORT, overall_height: 0.1875 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: BUMPER WITH UNTHREADED HOLE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-598-1270, 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
9540K48
NSN: 5340-01-598-1270
NIINs: 015981270, 016682868
FSC: 5340 — Hardware, Commercial
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
shapeCIRCULAR
diameter0.875 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING SUPPORT
overall_height0.1875 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyBUMPER WITH UNTHREADED HOLE
NSN5340-01-598-1270
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9540K48 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
•
OUTSIDE/TOP FLANGE DIAMETER: 0.875 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 70.0 DUROMETER NOMINAL
•
STYLE DESIGNATOR: FLAT TOP
•
COLOR: BLACK
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.406 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.875 INCHES NOMINAL IN
MATERIAL HARDNESS RATING70.0 DUROMETER NOMINAL
STYLE DESIGNATORFLAT TOP
COLORBLACK
END ITEM IDENTIFICATIONH-53/A/D/E
MATERIALRUBBER
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 9540K48?
9540K48 is a BUMPER.
What is the NSN for 9540K48?
9540K48 is cataloged in the U.S. Government catalog under NSN 5340-01-598-1270. 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.