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12282420 — STOP,MECHANICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12282420: STOP,MECHANICAL.

The STOP,MECHANICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304, design_type: STRAIGHT, overall_width: 0.380 INCHES NOMINAL IN, overall_length: 1.500 INCHES NOMINAL IN, end_item_identification: M1,M1A1,GPS,OIP,NEW TRU,XM1 GPS,XM1 TANK, material_document_and_classification: QQ-S-766, CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-291-6268, 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
12282420
NSN: 5340-01-291-6268
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 304
design_typeSTRAIGHT
overall_width0.380 INCHES NOMINAL IN
overall_length1.500 INCHES NOMINAL IN
end_item_identificationM1,M1A1,GPS,OIP,NEW TRU,XM1 GPS,XM1 TANK
material_document_and_classificationQQ-S-766, CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-291-6268
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12282420 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
•
DESIGN TYPE: STRAIGHT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766, CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 304
TECHNICAL CHARACTERISTICS
DESIGN TYPESTRAIGHT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766, CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.500 INCHES NOMINAL IN
OVERALL WIDTH0.380 INCHES NOMINAL IN
END ITEM IDENTIFICATIONM1,M1A1,GPS,OIP,NEW TRU,XM1 GPS,XM1 TANK
MATERIALSTEEL COMP 304
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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 12282420?
12282420 is a STOP,MECHANICAL.
What is the NSN for 12282420?
12282420 is cataloged in the U.S. Government catalog under NSN 5340-01-291-6268. 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.