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Technical Data Sheet
R21917 ✓ 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,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: WEBBED, OFFSET, SOLID, tooth_form: STANDARD, pitch_diameter: 16.0000 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, teeth_quantity: 40. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-163-2470, 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
R21917
NSN: 3020-00-163-2470
FSC: 3020
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleWEBBED, OFFSET, SOLID
tooth_formSTANDARD
pitch_diameter16.0000 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity40
style_designatorONE PROTRUDING HUB, ONE FLUSH HUB
face_nominal_width1.375 INCHES IN
nominal_overall_length3.625 INCHES IN
NSN3020-00-163-2470
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN R21917 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
NOMINAL OVERALL LENGTH: 3.625 INCHES IN
TOOTH FORM: STANDARD
FACE NOMINAL WIDTH: 1.375 INCHES IN
PITCH DIAMETER: 16.0000 INCHES NOMINAL IN
TEETH QUANTITY: 40
PRESSURE ANGLE: 20.0000 DEGREES
STYLE DESIGNATOR: ONE PROTRUDING HUB, ONE FLUSH HUB
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH3.625 INCHES IN
TOOTH FORMSTANDARD
FACE NOMINAL WIDTH1.375 INCHES IN
PITCH DIAMETER16.0000 INCHES NOMINAL IN
TEETH QUANTITY40
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORONE PROTRUDING HUB, ONE FLUSH HUB
MATERIALSTEEL OVERALL
BODY STYLEWEBBED, OFFSET, SOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
1645BInterchangeable
interchangeable cross-reference
interchangeable
G393231-1Interchangeable
interchangeable cross-reference
interchangeable
000993-801-1Interchangeable
interchangeable cross-reference
interchangeable
S8959V0720Interchangeable
interchangeable cross-reference
interchangeable
M83420/2-001Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-83420/2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R21917?
R21917 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace R21917?
There are 12 known substitutes for R21917: 1645B, G393231-1, 000993-801-1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R21917?
R21917 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-163-2470. This indicates validated use in U.S. government and defense supply chains.
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