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12373379 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12373379: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY A356.0, overall_height: 5.790 INCHES MINIMUM AND 5.850 INCHES MAXIMUM IN, overall_length: 7.500 INCHES NOMINAL IN, surface_treatment_document_and_classification: MIL-A-21180 MIL SPEC 4TH TREATMENT RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-422-8268, 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
12373379
NSN: 5340-01-422-8268
FSC: 5340 — Hardware, Commercial
CAGE: 01365 — MARINE CORPS SYSTEMS COMMAND DIV MARINE CORPS SYSTEMS COMMAND TECHNICAL DATA REPOSITORY CUSTOMER SERVICE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY A356.0
overall_height5.790 INCHES MINIMUM AND 5.850 INCHES MAXIMUM IN
overall_length7.500 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-A-21180 MIL SPEC 4TH TREATMENT RESPONSE
NSN5340-01-422-8268
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12373379 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-21180 MIL SPEC 4TH TREATMENT RESPONSE
•
MATERIAL: ALUMINUM ALLOY A356.0
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT5.790 INCHES MINIMUM AND 5.850 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-21180 MIL SPEC 4TH TREATMENT RESPONSE
OVERALL LENGTH7.500 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY A356.0
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12373379?
12373379 is a BRACKET,MOUNTING.
What is the NSN for 12373379?
12373379 is cataloged in the U.S. Government catalog under NSN 5340-01-422-8268. 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.