The Gear,spur, cataloged under National Stock Number 3020-01-119-0759, 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 General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-119-0759 |
| Primary Part Number | 142D5735 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.631 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.820 INCHES BETWEEN BODY AND FLANGE IN |
| Teeth Quantity | 36 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Flange Nominal Thickness | 0.100 INCHES IN |
| Flange Nominal Diameter | 1.250 INCHES IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Distance Between Outer Body Face and Inner Flange Face | 0.772 INCHES IN |
| Hub Style Designator | PLAIN FIRST END |
| Spline Quantity | 18 BOTH ENDS |
| Nominal Outside Diameter | 3.358 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4140 OVERALL |
| Spline Pitch Diameter | 0.5625 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.220 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 |
|---|---|
| 142D5735 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
NSN 3020-01-119-0759 is a Gear,spur, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-119-0759 has 1 manufacturer part number on file: 142D5735 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 142D5735: Bore Nominal Diameter: 0.631 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.820 INCHES BETWEEN BODY AND FLANGE IN; Teeth Quantity: 36; Body Style: WEBBED, OFFSET, WITH LIGHTENING HOLES. 19 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.