The Sprocket Wheel, cataloged under National Stock Number 3020-00-906-8288, 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 Gerhardt Gear Co, Inc. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-906-8288 |
| Primary Part Number | 925071-1 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Gerhardt Gear Co, Inc |
| Status | ACTIVE |
| Hub Outside Diameter | 1.180 INCHES NOMINAL BB END IN |
| Hub Outside Diameter | 1.248 INCHES NOMINAL AND 1.500 INCHES NOMINAL AA END IN |
| First Step Diameter | 1.312 INCHES NOMINAL AA END IN |
| Securing Method | DRILLED HOLE |
| Design Form | PLAIN |
| Tooth Pitch | 0.250 INCHES NOMINAL IN |
| Asa Standard Chain Number | 100 |
| Outside Diameter | 1.550 INCHES NOMINAL IN |
| Second Step Length | 0.250 INCHES NOMINAL AA END IN |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 1.242 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 30 |
| Second Step Diameter | 1.510 INCHES NOMINAL AA END IN |
| Protruding Hub Characteristic | STEPPED OR PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.250 INCHES NOMINAL AA END IN |
| Distance From Hub End to Flange End | 0.875 INCHES NOMINAL BB END IN |
| First Step Length | 0.540 INCHES NOMINAL AA END IN |
| Securing Hole Quantity | 1 |
| Drilled Hole Diameter | 0.187 INCHES NOMINAL IN |
| Hole Location | ON HUB FACE |
| Material | PLASTIC POLYAMIDE NYLON |
| Face Width | 0.620 INCHES NOMINAL IN |
| Securing Location | AA END |
| 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 |
|---|---|
| 925071-1 | Gerhardt Gear Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| 925071-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-906-8288 is a Sprocket Wheel, manufactured by Gerhardt Gear Co, Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-906-8288 has 1 manufacturer part number on file: 925071-1 (Gerhardt Gear Co, Inc).
Key specifications for 925071-1: Hub Outside Diameter: 1.180 INCHES NOMINAL BB END IN; Hub Outside Diameter: 1.248 INCHES NOMINAL AND 1.500 INCHES NOMINAL AA END IN; First Step Diameter: 1.312 INCHES NOMINAL AA END IN; Securing Method: DRILLED HOLE. 25 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.