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8409739 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8409739: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, hole_depth: 1.250 INCHES NOMINAL IN, hole_diameter: 0.500 INCHES NOMINAL IN, overall_height: 1.250 INCHES NOMINAL IN, style_designator: FLAT RECESSED TOP, fsc_application_data: MOUNT,GENERATOR SET,LAUNCHER,ROCKET,TRUCK MOUNTED,762MM,M289 MM. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-695-4787, 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
8409739
NSN: 5340-00-695-4787
FSC: 5340 — Hardware, Commercial
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialRUBBER
hole_depth1.250 INCHES NOMINAL IN
hole_diameter0.500 INCHES NOMINAL IN
overall_height1.250 INCHES NOMINAL IN
style_designatorFLAT RECESSED TOP
fsc_application_dataMOUNT,GENERATOR SET,LAUNCHER,ROCKET,TRUCK MOUNTED,762MM,M289 MM
material_hardness_rating75.0 DUROMETER MINIMUM AND 85.0 DUROMETER MAXIMUM
outside/top_flange_diameter1.000 INCHES NOMINAL IN
material_document_and_classificationMIL-STD-417, TYPE S, CLASS SC, GRADE SC815ABEF MIL STD SINGLE MATERIAL RESPONSE
NSN5340-00-695-4787
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8409739 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
•
FSC APPLICATION DATA: MOUNT,GENERATOR SET,LAUNCHER,ROCKET,TRUCK MOUNTED,762MM,M289 MM
•
OUTSIDE/TOP FLANGE DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 75.0 DUROMETER MINIMUM AND 85.0 DUROMETER MAXIMUM
•
HOLE DEPTH: 1.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT RECESSED TOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-STD-417, TYPE S, CLASS SC, GRADE SC815ABEF MIL STD SINGLE MATERIAL RESPONSE
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.250 INCHES NOMINAL IN
FSC APPLICATION DATAMOUNT,GENERATOR SET,LAUNCHER,ROCKET,TRUCK MOUNTED,762MM,M289 MM
OUTSIDE/TOP FLANGE DIAMETER1.000 INCHES NOMINAL IN
MATERIAL HARDNESS RATING75.0 DUROMETER MINIMUM AND 85.0 DUROMETER MAXIMUM
HOLE DEPTH1.250 INCHES NOMINAL IN
STYLE DESIGNATORFLAT RECESSED TOP
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-STD-417, TYPE S, CLASS SC, GRADE SC815ABEF MIL STD SINGLE MATERIAL RESPONSE
COLORBLACK
MATERIALRUBBER
HOLE DIAMETER0.500 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 1
402A118Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8409739?
8409739 is a BUMPER.
What parts can replace 8409739?
There is 1 known substitute for 8409739: 402A118. Substitute compatibility should be verified for your specific system.
What is the NSN for 8409739?
8409739 is cataloged in the U.S. Government catalog under NSN 5340-00-695-4787. This indicates validated use in U.S. government and defense supply chains.
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