PartsTable
Technical Data Sheet
Download PDF

RB-3URM-10 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

RB-3URM-10: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: PLASTIC, thread_size: 3/8-16, shank_length: 0.625 INCHES NOMINAL IN, overall_height: 1.875 INCHES NOMINAL IN, material_hardness_rating: 80.0 DUROMETER MINIMUM AND 90.0 DUROMETER MAXIMUM, outside/top_flange_diameter: 1.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-435-2404, 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
RB-3URM-10
NSN: 5340-01-435-2404
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC
thread_size3/8-16
shank_length0.625 INCHES NOMINAL IN
overall_height1.875 INCHES NOMINAL IN
material_hardness_rating80.0 DUROMETER MINIMUM AND 90.0 DUROMETER MAXIMUM
outside/top_flange_diameter1.250 INCHES NOMINAL IN
NSN5340-01-435-2404
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RB-3URM-10 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: 1.250 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 80.0 DUROMETER MINIMUM AND 90.0 DUROMETER MAXIMUM
•
SHANK LENGTH: 0.625 INCHES NOMINAL IN
•
THREAD SIZE: 3/8-16
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.875 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.250 INCHES NOMINAL IN
MATERIAL HARDNESS RATING80.0 DUROMETER MINIMUM AND 90.0 DUROMETER MAXIMUM
SHANK LENGTH0.625 INCHES NOMINAL IN
THREAD SIZE3/8-16
MATERIALPLASTIC
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
No demilitarization required
Ready to buy RB-3URM-10?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is RB-3URM-10?
RB-3URM-10 is a BUMPER.
What is the NSN for RB-3URM-10?
RB-3URM-10 is cataloged in the U.S. Government catalog under NSN 5340-01-435-2404. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — RB-3URM-10

✓ 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.