The Sheave Assy, cataloged under National Stock Number 4130-00-446-5129, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is TB Woods's Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Sheave Assy |
| FSC / FSG | 4130 — Refrigeration and Air Conditioning Components (FSG 41) |
| Manufacturers | TB Woods's Corporation (CAGE 79425) |
| Parameter | Value |
|---|---|
| NSN | 4130-00-446-5129 |
| Primary Part Number | 4GROOVE-B-SHEAVE9.4P.D |
| Item Name | Sheave Assy |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | TB Woods's Corporation |
| 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 |
|---|---|
| 4GROOVE-B-SHEAVE9.4P.D PRIMARY | TB Woods's Corporation (USA) |
| Reference | Meaning |
|---|---|
| 181019 | 5/9 Secondary reference U.S. Government activity |
| 181019 | 5/2 Secondary reference U.S. Government activity |
| 944B | 5/9 Secondary reference TB Woods's Corporation |
| 181019 | 5/9 Secondary reference Drs Environmental Systems Inc |
| BSHEAVE9-4PD | 5/9 Secondary reference TB Woods's Corporation |
NSN 4130-00-446-5129 is a Sheave Assy, manufactured by TB Woods's Corporation, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-00-446-5129 has 1 manufacturer part number on file: 4GROOVE-B-SHEAVE9.4P.D (TB Woods's Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6670-01-719-0461. 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.