The Pulley Special, cataloged under National Stock Number 3020-00-453-1970, 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 Thales Uk Limited Dba Thales Uk Ltd Optronics. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Pulley Special |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Thales Uk Limited Dba Thales Uk Ltd Optronics (CAGE K0216) |
| Parameter | Value |
|---|---|
| NSN | 3020-00-453-1970 |
| Primary Part Number | 1200-586 |
| Item Name | Pulley Special |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Thales Uk Limited Dba Thales Uk Ltd Optronics |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1200-586 PRIMARY | Thales Uk Limited Dba Thales Uk Ltd Optronics (GBR) |
| Reference | Meaning |
|---|---|
| 1200-586 | 3/9 Design control — primary reference Thales Uk Limited Dba Thales Uk Ltd Optronics |
NSN 3020-00-453-1970 is a Pulley Special, manufactured by Thales Uk Limited Dba Thales Uk Ltd Optronics, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-453-1970 has 1 manufacturer part number on file: 1200-586 (Thales Uk Limited Dba Thales Uk Ltd Optronics).
1 possible match (shared part number, not a government interchangeability claim): 4710-01-090-6279. Verify interchangeability with system specifications before substitution.
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.