The Gear,helical, cataloged under National Stock Number 3020-00-443-8461, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-443-8461 |
| Primary Part Number | H608R |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Keyway Nominal Width | 0.125 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.624 INCHES BOTH ENDS IN |
| Helix Angle | 45.0000 DEGREES |
| Teeth Quantity | 8 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | HUBLESS |
| Material Document and Classification | 66,AISI/SAE 1117 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.3330 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 1.6660 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.369 INCHES BOTH ENDS IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL COMP 1117 OVERALL |
| Face Nominal Width | 1.250 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| H608R PRIMARY | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| 10246691 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 3020-00-443-8461 is a Gear,helical, manufactured by Altra Industrial Motion Corp., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-443-8461 has 1 manufacturer part number on file: H608R (Altra Industrial Motion Corp.).
Key specifications for H608R: Keyway Nominal Width: 0.125 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.624 INCHES BOTH ENDS IN; Helix Angle: 45.0000 DEGREES; Teeth Quantity: 8. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.