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10917989 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

10917989: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, overall_height: 0.563 INCHES NOMINAL IN, groove_diameter: 0.125 INCHES NOMINAL IN, style_designator: DOUBLE FLANGE, top_flange_width: 0.313 INCHES NOMINAL IN, bottom_flange_width: 0.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-978-0655, 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
10917989
NSN: 5340-00-978-0655
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialRUBBER
overall_height0.563 INCHES NOMINAL IN
groove_diameter0.125 INCHES NOMINAL IN
style_designatorDOUBLE FLANGE
top_flange_width0.313 INCHES NOMINAL IN
bottom_flange_width0.188 INCHES NOMINAL IN
fsc_application_dataSEAT DROP LEAF BRACE,CARRIER,FULL TRACKED
bottom_flange_diameter0.250 INCHES NOMINAL IN
material_hardness_rating45.0 DUROMETER MINIMUM AND 55.0 DUROMETER MAXIMUM
outside/top_flange_diameter0.500 INCHES NOMINAL IN
material_document_and_classificationMIL-STD-417, TYPE R, CLASS RS, GRADE RS515ABC1F2K1N MIL STD SINGLE MATERIAL RESPONSE
NSN5340-00-978-0655
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10917989 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
•
BOTTOM FLANGE DIAMETER: 0.250 INCHES NOMINAL IN
•
FSC APPLICATION DATA: SEAT DROP LEAF BRACE,CARRIER,FULL TRACKED
•
OUTSIDE/TOP FLANGE DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 45.0 DUROMETER MINIMUM AND 55.0 DUROMETER MAXIMUM
•
GROOVE DIAMETER: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: DOUBLE FLANGE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-STD-417, TYPE R, CLASS RS, GRADE RS515ABC1F2K1N MIL STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
BOTTOM FLANGE DIAMETER0.250 INCHES NOMINAL IN
OVERALL HEIGHT0.563 INCHES NOMINAL IN
FSC APPLICATION DATASEAT DROP LEAF BRACE,CARRIER,FULL TRACKED
OUTSIDE/TOP FLANGE DIAMETER0.500 INCHES NOMINAL IN
MATERIAL HARDNESS RATING45.0 DUROMETER MINIMUM AND 55.0 DUROMETER MAXIMUM
GROOVE DIAMETER0.125 INCHES NOMINAL IN
STYLE DESIGNATORDOUBLE FLANGE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-STD-417, TYPE R, CLASS RS, GRADE RS515ABC1F2K1N MIL STD SINGLE MATERIAL RESPONSE
BOTTOM FLANGE WIDTH0.188 INCHES NOMINAL IN
TOP FLANGE WIDTH0.313 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10917989?
10917989 is a BUMPER.
What is the NSN for 10917989?
10917989 is cataloged in the U.S. Government catalog under NSN 5340-00-978-0655. This indicates validated use in U.S. government and defense supply chains.
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