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HM025-679-1 — SPROCKET WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

HM025-679-1: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630, bore_type: INVOLUTE SPLINE, face_width: 0.188 INCHES NOMINAL IN, design_form: PLAIN, spline_length: 0.188 INCHES NOMINAL IN, pitch_diameter: 2.196 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-182-3698, 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
HM025-679-1
NSN: 3020-01-182-3698
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 1T765 — ROBERTSON FUEL SYSTEMS, L.L.C. (USA)
SPECIFICATIONS
materialSTEEL COMP 630
bore_typeINVOLUTE SPLINE
face_width0.188 INCHES NOMINAL IN
design_formPLAIN
spline_length0.188 INCHES NOMINAL IN
pitch_diameter2.196 INCHES NOMINAL IN
securing_methodPRESS FIT
spline_quantity14
outside_diameter2.222 INCHES NOMINAL IN
special_featuresFINISH PER QQ-P-35,TYPE 1,2 OR 3;HUBLESS
style_designatorPLAIN
surface_treatmentPASSIVATE
NSN3020-01-182-3698
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPROCKET WHEEL TITLE COMPONENT PN HM025-679-1 MFR SPROCKET WHEEL
KEY FEATURES
•
SPLINE MINOR DIAMETER: 0.544 INCHES MINIMUM AND 0.549 INCHES MAXIMUM IN
•
SECURING METHOD: PRESS FIT
•
DESIGN FORM: PLAIN
•
OUTSIDE DIAMETER: 2.222 INCHES NOMINAL IN
•
SPLINE LENGTH: 0.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
•
PITCH DIAMETER: 2.196 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPLINE MINOR DIAMETER0.544 INCHES MINIMUM AND 0.549 INCHES MAXIMUM IN
SECURING METHODPRESS FIT
DESIGN FORMPLAIN
OUTSIDE DIAMETER2.222 INCHES NOMINAL IN
SPLINE LENGTH0.188 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
PITCH DIAMETER2.196 INCHES NOMINAL IN
SPLINE MAJOR DIAMETER0.644 INCHES NOMINAL IN
BORE TYPEINVOLUTE SPLINE
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES 1
014221-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is HM025-679-1?
HM025-679-1 is a SPROCKET WHEEL.
What parts can replace HM025-679-1?
There is 1 known substitute for HM025-679-1: 014221-1. Substitute compatibility should be verified for your specific system.
What is the NSN for HM025-679-1?
HM025-679-1 is cataloged in the U.S. Government catalog under NSN 3020-01-182-3698. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.