The Pulley,flat, cataloged under National Stock Number 3020-01-004-3627, 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 Brewer Machine & Gear Co. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3020-01-004-3627 |
| Primary Part Number | P1F |
| Item Name | Pulley,flat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Brewer Machine & Gear Co |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.375 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Bearing Type | NEEDLE ROLLER |
| Distance From Outside Flange/rim to Hub End and Location | 0.125 INCHES NOMINAL AA END IN |
| Keying Facility | NOT INCLUDED |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 1.000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING BODY |
| Crown Face | NOT INCLUDED |
| Face Width | 1.062 INCHES NOMINAL IN |
| 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 |
|---|---|
| P1F PRIMARY | Brewer Machine & Gear Co (USA) |
| Reference | Meaning |
|---|---|
| 216-00823-101 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 3020-01-004-3627 is a Pulley,flat, manufactured by Brewer Machine & Gear Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-004-3627 has 1 manufacturer part number on file: P1F (Brewer Machine & Gear Co).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-646-0053. Verify interchangeability with system specifications before substitution.
Key specifications for P1F: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Bearing Quantity: 1; Split Hub Feature: NOT INCLUDED. 20 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.