The Gear,spur, cataloged under National Stock Number 3020-01-665-4631, 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 Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-665-4631 |
| Primary Part Number | H7-49-D901 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Teeth Quantity | 49 |
| Body Style | SPOKED |
| Nominal Distance Between Body Face and Protruding Hub End | 0.2810 INCHES BETWEEN BODY AND FLANGE IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 0.5104 INCHES NOMINAL IN |
| Nominal Outside Diameter | 0.5310 INCHES IN |
| Pressure Angle | 20.0 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Face Nominal Width | 0.1250 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 |
|---|---|
| H7-49-D901 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 2693840-9 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-665-4631 is a Gear,spur, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-665-4631 has 1 manufacturer part number on file: H7-49-D901 (Roller Bearing Co of America, Inc Div Pic Design).
Key specifications for H7-49-D901: Teeth Quantity: 49; Body Style: SPOKED; Nominal Distance Between Body Face and Protruding Hub End: 0.2810 INCHES BETWEEN BODY AND FLANGE IN; Style Designator: PROTRUDING HUB. 9 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.