The Gear,spur, cataloged under National Stock Number 3020-00-809-1907, 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 Simmonds Precision Products Inc. 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 | 3020-00-809-1907 |
| Primary Part Number | A31135 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Simmonds Precision Products Inc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.064 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.440 INCHES FIRST END IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 54 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.302 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-764,TYPE 416,COND A-CANCELLED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.1077 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 1.148 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.160 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Face Nominal Width | 0.180 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 |
|---|---|
| A31135 PRIMARY | Simmonds Precision Products Inc (USA) |
NSN 3020-00-809-1907 is a Gear,spur, manufactured by Simmonds Precision Products Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-809-1907 has 1 manufacturer part number on file: A31135 (Simmonds Precision Products Inc).
Key specifications for A31135: Keyway Nominal Width: 0.064 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.440 INCHES FIRST END IN; Backlash Designation: GRADE C. 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.
NSN 3020-00-809-1907 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.