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12643149 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12643149: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 2.84 INCHES NOMINAL IN, overall_length: 5.01 INCHES NOMINAL IN, end_item_identification: 2320-01-653-6516, cross-sectional_thickness: 0.02 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: GASKET,COOLANT. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-674-6223, 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
12643149
NSN: 5330-01-674-6223
NIINs: 016746223, 017261629
FSC: 5330 — Packing and Gasket Materials
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width2.84 INCHES NOMINAL IN
overall_length5.01 INCHES NOMINAL IN
end_item_identification2320-01-653-6516
cross-sectional_thickness0.02 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyGASKET,COOLANT
NSN5330-01-674-6223
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12643149 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
•
CROSS-SECTIONAL THICKNESS: 0.02 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.02 INCHES NOMINAL IN
OVERALL LENGTH5.01 INCHES NOMINAL IN
OVERALL WIDTH2.84 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGASKET,COOLANT
END ITEM IDENTIFICATION2320-01-653-6516
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
4391059Reference document
Same NSN cross-reference
Reference document — Vendor item drawing 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 12643149?
12643149 is a BRACKET,MOUNTING.
What parts can replace 12643149?
There is 1 known substitute for 12643149: 4391059. Substitute compatibility should be verified for your specific system.
What is the NSN for 12643149?
12643149 is cataloged in the U.S. Government catalog under NSN 5330-01-674-6223. 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.