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0403-0163 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

0403-0163: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, hole_diameter: 0.188 INCHES NOMINAL IN, overall_height: 0.438 INCHES NOMINAL IN, special_features: WITH INTEGRAL WASHER, style_designator: PAN TOP COUNTERBORED, first_counterbore_depth: 0.220 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-545-6571, 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
0403-0163
NSN: 5340-00-545-6571
FSC: 5340 — Hardware, Commercial
CAGE: 7ZXR5 — KEYSIGHT TECHNOLOGIES INC (USA)
SPECIFICATIONS
materialRUBBER
hole_diameter0.188 INCHES NOMINAL IN
overall_height0.438 INCHES NOMINAL IN
special_featuresWITH INTEGRAL WASHER
style_designatorPAN TOP COUNTERBORED
first_counterbore_depth0.220 INCHES NOMINAL IN
first_counterbore_diameter0.343 INCHES NOMINAL IN
outside/top_flange_diameter0.625 INCHES NOMINAL IN
NSN5340-00-545-6571
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0403-0163 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: 0.625 INCHES NOMINAL IN
•
FIRST COUNTERBORE DIAMETER: 0.343 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PAN TOP COUNTERBORED
•
FIRST COUNTERBORE DEPTH: 0.220 INCHES NOMINAL IN
•
COLOR: BLACK
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.438 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.625 INCHES NOMINAL IN
FIRST COUNTERBORE DIAMETER0.343 INCHES NOMINAL IN
STYLE DESIGNATORPAN TOP COUNTERBORED
FIRST COUNTERBORE DEPTH0.220 INCHES NOMINAL IN
COLORBLACK
SPECIAL FEATURESWITH INTEGRAL WASHER
MATERIALRUBBER
HOLE DIAMETER0.188 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 0403-0163?
0403-0163 is a BUMPER.
What is the NSN for 0403-0163?
0403-0163 is cataloged in the U.S. Government catalog under NSN 5340-00-545-6571. 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.