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Technical Data Sheet
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9978027 — Technical Data Sheet

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— · 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 SHAFT AND PISTON AS is a the manufacturer industrial component. Key specifications include end_item_identification: OTHER VEHICLE FM RADIOS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 1420-00-894-9592, 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
9978027
NSN: 1420-00-894-9592
FSC: 1420
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
end_item_identificationOTHER VEHICLE FM RADIOS
NSN1420-00-894-9592
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT AND PISTON AS TITLE COMPONENT PN 9978027 MFR SHAFT AND PISTON AS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
21-951InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
BM21-951PC21-951InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3287499REVBPC6BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
02195-0001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SM-D-430308InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10292InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9978027?
9978027 is a SHAFT AND PISTON AS.
What parts can replace 9978027?
There are 6 known substitutes for 9978027: 21-951, BM21-951PC21-951, 3287499REVBPC6B and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9978027?
9978027 is cataloged in the Federal Logistics Information System under NSN 1420-00-894-9592. 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: October 2026