The Gear,spur, cataloged under National Stock Number 3020-00-245-7683, 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 Hatch & Kirk, Inc.. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-245-7683 |
| Primary Part Number | A75956 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Keyway Nominal Width | 0.1270 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.9810 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.4380 INCHES FIRST END IN |
| Teeth Quantity | 22 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.8700 INCHES FIRST END IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | SAE 3140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.2000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 2.3645 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.5595 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 3140 OVERALL |
| Face Nominal Width | 0.4380 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 |
NSN 3020-00-245-7683 is a Gear,spur, manufactured by Hatch & Kirk, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-245-7683 has 2 manufacturer part numbers on file: A75956 (Capitol Engine Co, Inc Dba Salmini Worldwide), A75956 (Hatch & Kirk, Inc.).
Key specifications for A75956: Keyway Nominal Width: 0.1270 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.9810 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.4380 INCHES FIRST END IN; Teeth Quantity: 22. 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.