PartsTable
Technical Data Sheet

25B12-5/16 — SPROCKET WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

25B12-5/16: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL, bore_type: STRAIGHT, face_width: 0.110 INCHES NOMINAL IN, bore_length: 0.500 INCHES NOMINAL IN, design_form: PLAIN, tooth_pitch: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-403-9406, 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
25B12-5/16
NSN: 3020-00-403-9406
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 71041 — ALTRA INDUSTRIAL MOTION CORP. (USA)
SPECIFICATIONS
materialSTEEL
bore_typeSTRAIGHT
face_width0.110 INCHES NOMINAL IN
bore_length0.500 INCHES NOMINAL IN
design_formPLAIN
tooth_pitch1.000 INCHES NOMINAL IN
bore_diameter0.312 INCHES NOMINAL IN
overall_length0.500 INCHES NOMINAL IN
pitch_diameter0.996 INCHES NOMINAL IN
outside_diameter1.083 INCHES NOMINAL IN
special_featuresSECURED THRU HUB BY 10-32 SETSCREWS
style_designatorPLAIN
NSN3020-00-403-9406
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPROCKET WHEEL TITLE COMPONENT PN 25B12-5/16 MFR SPROCKET WHEEL
KEY FEATURES
•
HUB OUTSIDE DIAMETER: 0.688 INCHES NOMINAL AA END IN
•
BORE LENGTH: 0.500 INCHES NOMINAL IN
•
DESIGN FORM: PLAIN
•
TEETH HARDNESS RATING: 60.0 ROCKWELL B MINIMUM
•
TOOTH PITCH: 1.000 INCHES NOMINAL IN
•
ASA STANDARD CHAIN NUMBER: 80-1
•
OUTSIDE DIAMETER: 1.083 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
HUB OUTSIDE DIAMETER0.688 INCHES NOMINAL AA END IN
BORE LENGTH0.500 INCHES NOMINAL IN
DESIGN FORMPLAIN
TEETH HARDNESS RATING60.0 ROCKWELL B MINIMUM
TOOTH PITCH1.000 INCHES NOMINAL IN
ASA STANDARD CHAIN NUMBER80-1
OUTSIDE DIAMETER1.083 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
PITCH DIAMETER0.996 INCHES NOMINAL IN
OVERALL LENGTH0.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
72875Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 25B12-5/16?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 25B12-5/16?
25B12-5/16 is a SPROCKET WHEEL.
What parts can replace 25B12-5/16?
There is 1 known substitute for 25B12-5/16: 72875. Substitute compatibility should be verified for your specific system.
What is the NSN for 25B12-5/16?
25B12-5/16 is cataloged in the U.S. Government catalog under NSN 3020-00-403-9406. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 25B12-5/16

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.