The Gear Sector,spur, cataloged under National Stock Number 3020-01-078-2035, 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 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-078-2035 |
| Primary Part Number | A8656 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Simmonds Precision Products Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 5643,17-4PH ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5643,17-4PH NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 630 OVERALL |
| 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 |
|---|---|
| A8656 | Simmonds Precision Products Inc (USA) |
| 642AS7510 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 51-10254 | 3/9 Design control — primary reference Illinois Tool Wks Inc Linac Div |
NSN 3020-01-078-2035 is a Gear Sector,spur, manufactured by Simmonds Precision Products Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-078-2035 has 2 manufacturer part numbers on file: A8656 (Simmonds Precision Products Inc), 642AS7510 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for A8656: Surface Treatment Document and Classification: AMS 5643,17-4PH ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: AMS 5643,17-4PH NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL; Special Features: BORE INCLUDED; Surface Treatment: PASSIVATE OVERALL. 4 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.