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Technical Data Sheet
PartsTable / COMPONENT / 21770-4
21770-4 ✓ 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 BLANKET,COUPLING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2835-00-659-0536, 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
21770-4
NSN: 2835-00-659-0536
FSC: 2835
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
Part Number21770-4
NSN2835-00-659-0536
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BLANKET,COUPLING TITLE COMPONENT PN 21770-4 MFR BLANKET,COUPLING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
217704Interchangeable
interchangeable cross-reference
interchangeable
58947Interchangeable
interchangeable cross-reference
interchangeable
10512635Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21770-4?
21770-4 is a BLANKET,COUPLING.
What parts can replace 21770-4?
There are 3 known substitutes for 21770-4: 217704, 58947, 10512635. Substitute compatibility should be verified for your specific system.
What is the NSN for 21770-4?
21770-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2835-00-659-0536. 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