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3H8726 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3H8726: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include hole_depth: 1.375 INCHES NOMINAL IN, hole_diameter: 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN, overall_length: 1.375 INCHES NOMINAL IN, material_hardness_rating: 50.0 DUROMETER NOMINAL, outside/top_flange_diameter: 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-971-4820, 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
3H8726
NSN: 5340-00-971-4820
FSC: 5340 — Hardware, Commercial
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
hole_depth1.375 INCHES NOMINAL IN
hole_diameter0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
overall_length1.375 INCHES NOMINAL IN
material_hardness_rating50.0 DUROMETER NOMINAL
outside/top_flange_diameter1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
NSN5340-00-971-4820
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3H8726 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: 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
•
MATERIAL HARDNESS RATING: 50.0 DUROMETER NOMINAL
•
HOLE DEPTH: 1.375 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OUTSIDE/TOP FLANGE DIAMETER1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
MATERIAL HARDNESS RATING50.0 DUROMETER NOMINAL
HOLE DEPTH1.375 INCHES NOMINAL IN
OVERALL LENGTH1.375 INCHES NOMINAL IN
HOLE DIAMETER0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
11602960Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
12180Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 3H8726?
3H8726 is a BUMPER.
What parts can replace 3H8726?
There are 2 known substitutes for 3H8726: 11602960, 12180. Substitute compatibility should be verified for your specific system.
What is the NSN for 3H8726?
3H8726 is cataloged in the U.S. Government catalog under NSN 5340-00-971-4820. This indicates validated use in U.S. government and defense supply chains.
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