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26478-0499 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

26478-0499: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, hole_diameter: 0.281 INCHES NOMINAL IN, overall_height: 0.562 INCHES NOMINAL IN, style_designator: PAN TOP COUNTERBORED, first_counterbore_depth: 0.312 INCHES NOMINAL IN, first_counterbore_diameter: 0.531 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-158-2187, 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
26478-0499
NSN: 5340-01-158-2187
FSC: 5340 — Hardware, Commercial
CAGE: 19397 — BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATION INC. (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
hole_diameter0.281 INCHES NOMINAL IN
overall_height0.562 INCHES NOMINAL IN
style_designatorPAN TOP COUNTERBORED
first_counterbore_depth0.312 INCHES NOMINAL IN
first_counterbore_diameter0.531 INCHES NOMINAL IN
outside/top_flange_diameter1.000 INCHES NOMINAL IN
NSN5340-01-158-2187
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 26478-0499 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: 1.000 INCHES NOMINAL IN
•
FIRST COUNTERBORE DIAMETER: 0.531 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PAN TOP COUNTERBORED
•
FIRST COUNTERBORE DEPTH: 0.312 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
HOLE DIAMETER: 0.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.562 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.000 INCHES NOMINAL IN
FIRST COUNTERBORE DIAMETER0.531 INCHES NOMINAL IN
STYLE DESIGNATORPAN TOP COUNTERBORED
FIRST COUNTERBORE DEPTH0.312 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
HOLE DIAMETER0.281 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

No substitute or cross-reference records for this part.

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 26478-0499?
26478-0499 is a BUMPER.
What is the NSN for 26478-0499?
26478-0499 is cataloged in the U.S. Government catalog under NSN 5340-01-158-2187. This indicates validated use in U.S. government and defense supply chains.
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