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1784276 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

RING ASSEMBLY,ELECTRICAL CONTACT. Key specifications include width: 0.025 INCHES NOMINAL IN, diameter: 0.209 INCHES NOMINAL IN, overall_length: 1.380 INCHES NOMINAL IN, overall_diameter: 0.309 INCHES NOMINAL IN, fsc_application_data: INDICATOR,ALTITUDE,FLIGHT INSTRUMENTS, contact_ring_quantity: 21. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-836-7394, 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
1784276
NSN: 5977-00-836-7394
FSC: 5977
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
width0.025 INCHES NOMINAL IN
diameter0.209 INCHES NOMINAL IN
overall_length1.380 INCHES NOMINAL IN
overall_diameter0.309 INCHES NOMINAL IN
fsc_application_dataINDICATOR,ALTITUDE,FLIGHT INSTRUMENTS
contact_ring_quantity21
mounting_configuration0.250 IN. DIA CENTER MTG IN
NSN5977-00-836-7394
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING ASSEMBLY,ELECTRICAL CONTACT TITLE COMPONENT PN 1784276 MFR RING ASSEMBLY,ELECTRIC
KEY FEATURES
•
WIDTH: 0.025 INCHES NOMINAL IN
•
FSC APPLICATION DATA: INDICATOR,ALTITUDE,FLIGHT INSTRUMENTS
•
OVERALL DIAMETER: 0.309 INCHES NOMINAL IN
•
DIAMETER: 0.209 INCHES NOMINAL IN
•
CONTACT RING QUANTITY: 21
•
MOUNTING CONFIGURATION: 0.250 IN. DIA CENTER MTG IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH0.025 INCHES NOMINAL IN
FSC APPLICATION DATAINDICATOR,ALTITUDE,FLIGHT INSTRUMENTS
OVERALL LENGTH1.380 INCHES NOMINAL IN
OVERALL DIAMETER0.309 INCHES NOMINAL IN
DIAMETER0.209 INCHES NOMINAL IN
CONTACT RING QUANTITY21
MOUNTING CONFIGURATION0.250 IN. DIA CENTER MTG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
00-4516Interchangeable
interchangeable cross-reference
interchangeable
10435Interchangeable
interchangeable cross-reference
interchangeable
154C/AIC(MOD)Interchangeable
interchangeable cross-reference
interchangeable
SE527FInterchangeable
interchangeable cross-reference
interchangeable
3000-247Interchangeable
interchangeable cross-reference
interchangeable
SE527F/883BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1784276?
1784276 is a RING ASSEMBLY,ELECTRICAL CONTACT.
What parts can replace 1784276?
There are 7 known substitutes for 1784276: 00-4516, 10435, 154C/AIC(MOD) and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1784276?
1784276 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-836-7394. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026