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596-7409747-74 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

596-7409747-74: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, overall_height: 0.280 INCHES NOMINAL IN, style_designator: FLAT TOP, end_item_identification: PAWL ASSEMBLY,RAMMER,CARGO BAY, outside/top_flange_diameter: 0.250 INCHES NOMINAL IN, material_document_and_classification: MIL-R-6855, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-503-1039, 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
596-7409747-74
NSN: 5340-01-503-1039
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialRUBBER
overall_height0.280 INCHES NOMINAL IN
style_designatorFLAT TOP
end_item_identificationPAWL ASSEMBLY,RAMMER,CARGO BAY
outside/top_flange_diameter0.250 INCHES NOMINAL IN
material_document_and_classificationMIL-R-6855, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-503-1039
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 596-7409747-74 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: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT TOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.280 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.250 INCHES NOMINAL IN
STYLE DESIGNATORFLAT TOP
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
END ITEM IDENTIFICATIONPAWL ASSEMBLY,RAMMER,CARGO BAY
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 2
B831-6400-74Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7409747Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 596-7409747-74?
596-7409747-74 is a BUMPER.
What parts can replace 596-7409747-74?
There are 2 known substitutes for 596-7409747-74: B831-6400-74, 7409747. Substitute compatibility should be verified for your specific system.
What is the NSN for 596-7409747-74?
596-7409747-74 is cataloged in the U.S. Government catalog under NSN 5340-01-503-1039. 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.