The Pulley,groove, cataloged under National Stock Number 3020-01-357-6661, 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 Tyco Fire Products Lp. Government technical data includes 10 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. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-357-6661 |
| Primary Part Number | 45771 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Style Designator | PLAIN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Counterbore Feature | NOT INCLUDED |
| Material | STEEL OVERALL |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| 45771 PRIMARY | Tyco Fire Products Lp (USA) |
NSN 3020-01-357-6661 is a Pulley,groove, manufactured by Tyco Fire Products Lp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-357-6661 has 1 manufacturer part number on file: 45771 (Tyco Fire Products Lp).
3 possible matches (shared part number, not a government interchangeability claim): 5315-01-437-5839, 5360-01-459-9208, 4610-01-646-0758. Verify interchangeability with system specifications before substitution.
Key specifications for 45771: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Design Form: PLAIN. 10 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.