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311781 — RING,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

311781: RING,ELECTRICAL CONTACT.

The RING,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include shape: CYLINDRICAL, overall_length: 4.330 INCHES NOMINAL IN, overall_diameter: 0.118 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-308-2480, 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
311781
NSN: 5977-00-308-2480
NIINs: 003082480, 012332830
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
shapeCYLINDRICAL
overall_length4.330 INCHES NOMINAL IN
overall_diameter0.118 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
NSN5977-00-308-2480
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,ELECTRICAL CONTACT TITLE COMPONENT PN 311781 MFR RING,ELECTRICAL CONTAC
KEY FEATURES
•
OVERALL DIAMETER: 0.118 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
SHAPE: CYLINDRICAL
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.118 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
SHAPECYLINDRICAL
OVERALL LENGTH4.330 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
F1772R002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 311781?
311781 is a RING,ELECTRICAL CONTACT.
What parts can replace 311781?
There is 1 known substitute for 311781: F1772R002. Substitute compatibility should be verified for your specific system.
What is the NSN for 311781?
311781 is cataloged in the U.S. Government catalog under NSN 5977-00-308-2480. 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.