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12553257 — STOP,MECHANICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12553257: STOP,MECHANICAL.

The STOP,MECHANICAL is a the manufacturer industrial component. Key specifications include material: STEEL, special_features: MOUNT HOLE THREAD SERIES: NC;MOUNT HOLE NOMINAL THREAD SIZE: 0.375IN IN, end_item_identification: GOES ON ABF499 AF1 M109A3E2 MODIFIED, material_document_and_classification: SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-320-2686, 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
12553257
NSN: 5340-01-320-2686
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL
special_featuresMOUNT HOLE THREAD SERIES: NC;MOUNT HOLE NOMINAL THREAD SIZE: 0.375IN IN
end_item_identificationGOES ON ABF499 AF1 M109A3E2 MODIFIED
material_document_and_classificationSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-320-2686
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12553257 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
SPECIAL FEATURESMOUNT HOLE THREAD SERIES: NC;MOUNT HOLE NOMINAL THREAD SIZE: 0.375IN IN
END ITEM IDENTIFICATIONGOES ON ABF499 AF1 M109A3E2 MODIFIED
MATERIALSTEEL
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 12553257?
12553257 is a STOP,MECHANICAL.
What is the NSN for 12553257?
12553257 is cataloged in the U.S. Government catalog under NSN 5340-01-320-2686. This indicates validated use in U.S. government and defense supply chains.
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