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74786F91 — STOP,MECHANICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

74786F91: STOP,MECHANICAL.

The STOP,MECHANICAL is a the manufacturer industrial component. Key specifications include special_features: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION, end_item_identification: ENGINE DIESEL, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-367-5708, 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
74786F91
NSN: 5340-01-367-5708
FSC: 5340 — Hardware, Commercial
CAGE: 0VP52 — FINCANTIERI MARINE SYSTEMS NORTH AMERICA, INC. DBA FINCANTIERI MARINE SYSTEMS NORTH AM (USA)
SPECIFICATIONS
special_featuresMAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
end_item_identificationENGINE DIESEL
criticality_code_justificationFEAT
NSN5340-01-367-5708
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 74786F91 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESMAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
END ITEM IDENTIFICATIONENGINE DIESEL
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 74786F91?
74786F91 is a STOP,MECHANICAL.
What is the NSN for 74786F91?
74786F91 is cataloged in the U.S. Government catalog under NSN 5340-01-367-5708. This indicates validated use in U.S. government and defense supply chains.
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