The Gear,worm, cataloged under National Stock Number 3020-01-552-7959, 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 Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-552-7959 |
| Primary Part Number | 291KD1157 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales |
| Status | ACTIVE |
| Style Designator | HUBLESS |
| Pitch Diameter | 2.1570 INCHES MINIMUM AND 2.1580 INCHES MAXIMUM IN |
| Nominal Outside Diameter | 3.202 INCHES IN |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.844 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 |
|---|---|
| 291KD1157 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| Reference | Meaning |
|---|---|
| 291KD1157 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-552-7959 is a Gear,worm, manufactured by Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-552-7959 has 1 manufacturer part number on file: 291KD1157 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales).
Key specifications for 291KD1157: Style Designator: HUBLESS; Pitch Diameter: 2.1570 INCHES MINIMUM AND 2.1580 INCHES MAXIMUM IN; Nominal Outside Diameter: 3.202 INCHES IN; Special Features: SIDES TO BE PARALLEL AND AT RIGHT ANGLES TO BORE WITHIN .002 T.I.R.; MODIFY TOOTH CUT TO PROVIDE FROM .002 - .006 BACKLASH. 5 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.