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PartsTable / COMPONENT / 21089-1
21089-1 ✓ 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 COUPLER,ROTARY,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include relay_type: ELECTROMAGNETIC, overall_width: 1.312 INCHES NOMINAL IN, overall_height: 1.359 INCHES NOMINAL IN, overall_length: 6.420 INCHES NOMINAL IN, special_features: 2318, TI 6330.5, FA 10630, VOL 3, SEC 8, PG 3-8-11, mounting_facility: BRACKET(S). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-325-9969, 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
21089-1
NSN: 1650-00-325-9969
FSC: 1650
CAGE: 81982 — HYDRO-AIRE AEROSPACE CORP (USA)
SPECIFICATIONS
relay_typeELECTROMAGNETIC
overall_width1.312 INCHES NOMINAL IN
overall_height1.359 INCHES NOMINAL IN
overall_length6.420 INCHES NOMINAL IN
special_features2318, TI 6330.5, FA 10630, VOL 3, SEC 8, PG 3-8-11
mounting_facilityBRACKET(S)
controlling_agencyNORTHROP CORPORATION
identifying_number21089-1 DRAWING NO.
mounting_configurationTHREADED HOLE MOUNTED
end_item_identificationASDE3,AIRPORT SURVEILLANCE DETECTION EQUIPMENT 3,CONTRACT NUMBER DTFA01-85-C-00054
individual_relay_quantity2
NSN1650-00-325-9969
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,ROTARY,RADIO FREQUENCY TITLE COMPONENT PN 21089-1 MFR COUPLER,ROTARY,RADIO F
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
645-6105Interchangeable
interchangeable cross-reference
interchangeable
21089-1Interchangeable
interchangeable cross-reference
interchangeable
R31877PC6Interchangeable
interchangeable cross-reference
interchangeable
187802Interchangeable
interchangeable cross-reference
interchangeable
21089/1Interchangeable
interchangeable cross-reference
interchangeable
MODEL 56-645-0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21089-1?
21089-1 is a COUPLER,ROTARY,RADIO FREQUENCY.
What parts can replace 21089-1?
There are 6 known substitutes for 21089-1: 645-6105, 21089-1, R31877PC6 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21089-1?
21089-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-325-9969. 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