The Gear,spur, cataloged under National Stock Number 3020-01-090-3426, 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 Designatronics Incorporated Div Sterling Instruments Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-090-3426 |
| Primary Part Number | M17A-120-Q10 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Designatronics Incorporated Div Sterling Instruments Div |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.187 INCHES FIRST END IN |
| Teeth Quantity | 120 |
| Clamping Surface Nominal Length | 0.250 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.282 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.9990 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Outside Diameter | 1.015 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Face Nominal Width | 0.093 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 |
|---|---|
| M17A-120-Q10 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| Reference | Meaning |
|---|---|
| 803631 | D/9 Drawing number reference only U.S. Government activity |
| 803631-2120 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-090-3426 is a Gear,spur, manufactured by Designatronics Incorporated Div Sterling Instruments Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-090-3426 has 1 manufacturer part number on file: M17A-120-Q10 (Designatronics Incorporated Div Sterling Instruments Div).
Key specifications for M17A-120-Q10: Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.187 INCHES FIRST END IN; Teeth Quantity: 120; Clamping Surface Nominal Length: 0.250 INCHES FIRST END IN. 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.