The Pulley,groove, cataloged under National Stock Number 3020-01-474-6316, 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 Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-474-6316 |
| Primary Part Number | 124-5794558 PC 21 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Design Form | PLAIN |
| Material | STEEL 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 |
|---|---|
| 124-5794558 PC 21 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 737-1111 (STYLE 4241) | 5/9 Secondary reference Nestor Sales Llc Dba Aim Supply Co Div Government Sales Division |
| 1522-131 | 5/9 Secondary reference U.S. Government activity |
| 737-1111 (STYLE 4241) | 5/9 Secondary reference Apex Tool Group, Llc |
| 737-1111 (STYLE 4241) | 5/9 Secondary reference U.S. Government activity |
| 124-5794558 PC 21 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-474-6316 is a Pulley,groove, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-474-6316 has 1 manufacturer part number on file: 124-5794558 PC 21 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 124-5794558 PC 21: Design Form: PLAIN; Special Features: "U" SHAPED GROOVE PULLEY-8" IN DIAMETER; USES 5/8" WIRE ROPE; GROOVE DIAMETER IS 6 5/8" AND GROOVE WIDTH IS 1 3/8"; End Item Identification: CVN 71 AIRCRAFT CARRIER; Material: STEEL OVERALL. 2 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.