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C538-277 — MOUNT,RESILIENT,WEAPON SYSTEM

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

C538-277: MOUNT,RESILIENT,WEAPON SYSTEM.

The MOUNT,RESILIENT,WEAPON SYSTEM is a the manufacturer industrial component. Key specifications include height: 2.610 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN, stud_length: 1.000 INCHES MINIMUM AND 1.090 INCHES MAXIMUM ALL THREADED STUD IN, special_features: THREADED STUD 0.500-20-UNF-2A A, style_designator: ROUND W/ONE THREADED STUD, major_outside_diameter: 3.120 INCHES NOMINAL IN, end_item_identification: APACHE ATTACK HELICOPTER. This part is cataloged in the U.S.

Government catalog under NSN 5342-01-472-5344, 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
C538-277
NSN: 5342-01-472-5344
FSC: 5342 — Hardware, Weapon System
CAGE: 71985 — DOW-ELCO, INC. (USA)
SPECIFICATIONS
height2.610 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN
stud_length1.000 INCHES MINIMUM AND 1.090 INCHES MAXIMUM ALL THREADED STUD IN
special_featuresTHREADED STUD 0.500-20-UNF-2A A
style_designatorROUND W/ONE THREADED STUD
major_outside_diameter3.120 INCHES NOMINAL IN
end_item_identificationAPACHE ATTACK HELICOPTER
NSN5342-01-472-5344
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MOUNT,RESILIENT,WEAPON SYSTEM TITLE COMPONENT PN C538-277 MFR MOUNT,RESILIENT,WEAPON
KEY FEATURES
•
STYLE DESIGNATOR: ROUND W/ONE THREADED STUD
•
STUD LENGTH: 1.000 INCHES MINIMUM AND 1.090 INCHES MAXIMUM ALL THREADED STUD IN
•
HEIGHT: 2.610 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN
•
MAJOR OUTSIDE DIAMETER: 3.120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORROUND W/ONE THREADED STUD
STUD LENGTH1.000 INCHES MINIMUM AND 1.090 INCHES MAXIMUM ALL THREADED STUD IN
HEIGHT2.610 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN
SPECIAL FEATURESTHREADED STUD 0.500-20-UNF-2A A
END ITEM IDENTIFICATIONAPACHE ATTACK HELICOPTER
MAJOR OUTSIDE DIAMETER3.120 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5342 — Hardware, Weapon System
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5342-00-001-1696 5342-00-001-1972 5342-00-001-1980 5342-00-001-2492 5342-00-001-2502 5342-00-001-3915 5342-00-001-4001 5342-00-001-4655
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is C538-277?
C538-277 is a MOUNT,RESILIENT,WEAPON SYSTEM.
What is the NSN for C538-277?
C538-277 is cataloged in the U.S. Government catalog under NSN 5342-01-472-5344. 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.