The Gear,spur, cataloged under National Stock Number 3020-01-325-4778, 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 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-325-4778 |
| Primary Part Number | 114C2503-2 |
| 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 |
| Hub Nominal Diameter | 0.900 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.760 INCHES SECOND END IN |
| Nominal Distance From Flat to Radial Center | 0.224 INCHES BOTH ENDS IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.050 INCHES SECOND END IN |
| Teeth Quantity | 48 |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | D BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.405 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 9 |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Material Document and Classification | AMS5659 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5862 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 3.118 INCHES IN |
| Nominal Radius | 1.496 INCHES BOTH ENDS IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP XM-12 OVERALL |
| Face Nominal Width | 0.210 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 114C2503-2 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| Reference | Meaning |
|---|---|
| 114C2503 | D/9 Drawing number reference only General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
NSN 3020-01-325-4778 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 3020-01-325-4778 has 1 manufacturer part number on file: 114C2503-2 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 114C2503-2: Hub Nominal Diameter: 0.900 INCHES FIRST END IN; Hub Nominal Diameter: 0.760 INCHES SECOND END IN; Nominal Distance From Flat to Radial Center: 0.224 INCHES BOTH ENDS IN; Nominal Distance Between Body Face and Recessed Hub End: 0.050 INCHES SECOND END IN. 21 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.
NSN 3020-01-325-4778 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.