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A-A-1972 ✓ 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 BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-519-1221, 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
A-A-1972
NSN: 6240-00-519-1221
FSC: 6240
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
NSN6240-00-519-1221
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BEARING,WASHER,THRUST TITLE COMPONENT PN A-A-1972 MFR BEARING,WASHER,THRUST
KEY FEATURES
•
BURNING POSITION: BASE DOWN
•
EMITTED LIGHT CHARACTERISTIC: WHITE
•
LIGHT CENTER LENGTH: 3.312 INCHES NOMINAL IN
•
RATED AVERAGE LIFE: HOURS
•
VOLTAGE RATING: 120.000 VOLTS NOMINAL
•
BULB LIGHT TRANSMISSION CHARACTERISTIC: TRANSPARENT
•
AVERAGE LIFE RATING IN HOURS: 750.0
TECHNICAL CHARACTERISTICS (FLIS)
BURNING POSITIONBASE DOWN
EMITTED LIGHT CHARACTERISTICWHITE
LIGHT CENTER LENGTH3.312 INCHES NOMINAL IN
RATED AVERAGE LIFEHOURS
VOLTAGE RATING120.000 VOLTS NOMINAL
BULB LIGHT TRANSMISSION CHARACTERISTICTRANSPARENT
AVERAGE LIFE RATING IN HOURS750.0
OVERALL LENGTH5.062 INCHES MAXIMUM IN
BULB DESIGNATORP-25
WATTAGE RATING50.000 WATTS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
DD-4639 NO 11Interchangeable
interchangeable cross-reference
interchangeable
DD-4690 REF NO. 11Interchangeable
interchangeable cross-reference
interchangeable
DD-4697 REF NO 11Interchangeable
interchangeable cross-reference
interchangeable
50/50P25/28-120VInterchangeable
Same NIIN cross-reference
interchangeable
50/50P25/28Interchangeable
Same NIIN cross-reference
interchangeable
50-50P25-28Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-1972?
A-A-1972 is a BEARING,WASHER,THRUST.
What parts can replace A-A-1972?
There are 8 known substitutes for A-A-1972: DD-4639 NO 11, DD-4690 REF NO. 11, DD-4697 REF NO 11 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-1972?
A-A-1972 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-519-1221. 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