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Technical Data Sheet
A2-81 ✓ 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 TRANSFORMER,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include color: BLACK, width: 1.365 INCHES NOMINAL IN, material: PLASTIC, body_length: 0.500 INCHES NOMINAL IN, shank_style: STRAIGHT, skirt_style: RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5965-00-090-7451, 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
A2-81
NSN: 5965-00-090-7451
FSC: 5965
CAGE: 78957 — COMDIAL BUSINESS COMMUNICATIONS CORP REPAIR DEPT (USA)
SPECIFICATIONS
colorBLACK
width1.365 INCHES NOMINAL IN
materialPLASTIC
body_length0.500 INCHES NOMINAL IN
shank_styleSTRAIGHT
skirt_styleRING
inside_width0.160 INCHES NOMINAL IN
shank_length0.100 INCHES NOMINAL IN
skirt_designNONDETACHABLE
overall_depth1.060 INCHES NOMINAL IN
overall_width0.469 INCHES NOMINAL IN
coil_form_typeSOLID SINGLE COMPONENT
NSN5965-00-090-7451
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,RADIO FREQUENCY TITLE COMPONENT PN A2-81 MFR TRANSFORMER,RADIO FREQ
KEY FEATURES
FEATURES PROVIDED: COMPRESSION RING
MATERIAL: ALUMINUM ALLOY
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
SURFACE TREATMENT: CADMIUM
UNTHREADED MOUNTING HOLE DIAMETER: 0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
STYLE DESIGNATOR: IRREGULAR
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDCOMPRESSION RING
MATERIALALUMINUM ALLOY
DISTANCE BETWEEN MOUNTING FACILITY CENTERS1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
SURFACE TREATMENTCADMIUM
UNTHREADED MOUNTING HOLE DIAMETER0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
OVERALL WIDTH3.438 INCHES NOMINAL IN
SPECIAL FEATURESBLACK FINISHED LOCKING HOOK WITH RUBBER PADDED FORK FOR HANDSET RECEIVER, TRANSMITTER IS HELD BY COIL STAINLESS STEEL SPRING COVERED WITH PHENOLIC ROLLERS
STYLE DESIGNATORIRREGULAR
ACCOMMODATED ITEM SECURING DEVICE TYPEFRICTION FASTENER
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
7P71Interchangeable
interchangeable cross-reference
interchangeable
AC281Interchangeable
interchangeable cross-reference
interchangeable
RB965Interchangeable
interchangeable cross-reference
interchangeable
A2.81Interchangeable
interchangeable cross-reference
interchangeable
A2-81Interchangeable
interchangeable cross-reference
interchangeable
278-0398-010Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2-81?
A2-81 is a TRANSFORMER,RADIO FREQUENCY.
What parts can replace A2-81?
There are 16 known substitutes for A2-81: 7P71, AC281, RB965 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A2-81?
A2-81 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5965-00-090-7451. This indicates validated use in U.S. government and defense supply chains.
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