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PartsTable / COMPONENT / MS0421-203-1839528 PIECE 51
MS0421-203-1839528 PIECE 51 ✓ 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

The RING,SPECIAL is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: NICKEL COPPER ALLOY PER QQ-N-288. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-01-160-5218, 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
MS0421-203-1839528 PIECE 51
NSN: 5365-01-160-5218
FSC: 5365
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
general_characteristics_item_descriptionNICKEL COPPER ALLOY PER QQ-N-288
NSN5365-01-160-5218
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,SPECIAL TITLE COMPONENT PN MS0421-203-1839528 PIECE 51 MFR RING,SPECIAL
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: NICKEL COPPER ALLOY PER QQ-N-288
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONNICKEL COPPER ALLOY PER QQ-N-288
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
71910202001Interchangeable
interchangeable cross-reference
interchangeable
160-2041-02-05-27Interchangeable
interchangeable cross-reference
interchangeable
4099-0005Interchangeable
interchangeable cross-reference
interchangeable
157-22Interchangeable
interchangeable cross-reference
interchangeable
R1A02P0RM10PCTInterchangeable
interchangeable cross-reference
interchangeable
860762-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS0421-203-1839528 PIECE 51?
MS0421-203-1839528 PIECE 51 is a RING,SPECIAL.
What parts can replace MS0421-203-1839528 PIECE 51?
There are 11 known substitutes for MS0421-203-1839528 PIECE 51: 71910202001, 160-2041-02-05-27, 4099-0005 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS0421-203-1839528 PIECE 51?
MS0421-203-1839528 PIECE 51 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-01-160-5218. 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