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Technical Data Sheet
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AE12468781 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AE12468781: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include end_item_identification: M3 A1 CROP, FLATRACK, SUMMA NSN3990-01-442-2751. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-474-9146, 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
AE12468781
NSN: 5340-01-474-9146
FSC: 5340 — Hardware, Commercial
CAGE: 0BHJ4 — AL MAR INC (USA)
SPECIFICATIONS
end_item_identificationM3 A1 CROP, FLATRACK, SUMMA NSN3990-01-442-2751
NSN5340-01-474-9146
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AE12468781 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONM3 A1 CROP, FLATRACK, SUMMA NSN3990-01-442-2751
SUBSTITUTES & CROSS-REFERENCES 2
12468781Reference document
Same NSN cross-reference
Reference document — Secondary reference
20-00870Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AE12468781?
AE12468781 is a BUMPER.
What parts can replace AE12468781?
There are 2 known substitutes for AE12468781: 12468781, 20-00870. Substitute compatibility should be verified for your specific system.
What is the NSN for AE12468781?
AE12468781 is cataloged in the U.S. Government catalog under NSN 5340-01-474-9146. This indicates validated use in U.S. government and defense supply chains.
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