The Pulley,groove, cataloged under National Stock Number 3020-01-591-9440, 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 Suncor Stainless, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3020-01-591-9440 |
| Primary Part Number | S0412-0813 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Suncor Stainless, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| S0412-0813 | Suncor Stainless, Inc (USA) |
| Reference | Meaning |
|---|---|
| D-WK-871-44 | D/9 Drawing number reference only U.S. Government activity |
| D-WK-871-43 REV E PC.NO.2 | 5/1 Secondary reference U.S. Government activity |
| B-WK-852-73 | 3/2 Design control — primary reference U.S. Government activity |
| D-WK-871-44 REV E PC.NO.2 | 5/1 Secondary reference U.S. Government activity |
NSN 3020-01-591-9440 is a Pulley,groove, manufactured by Suncor Stainless, Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-591-9440 has 1 manufacturer part number on file: S0412-0813 (Suncor Stainless, Inc).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-591-9443. Verify interchangeability with system specifications before substitution.
Key specifications for S0412-0813: Part Name Assigned by Controlling Agency: SHEAVE ASSEMBLY, 5 INCH IN; End Item Identification: STARBOARD JIGGER WINCH FOR LCS-1,CLASS 5300 X 5075 W,SLIDING DOOR W. 0 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.