The Pulley,groove, cataloged under National Stock Number 3020-00-427-3418, 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 L & L Boiler Maintenance Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-427-3418 |
| Primary Part Number | 157305003 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L & L Boiler Maintenance Inc |
| Status | ACTIVE |
| Bore Feature | INCLUDED |
| Groove Shape | V |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Bore Type | STRAIGHT |
| Distance From Center of Bore to Bottom of Keyway | 0.999 INCHES NOMINAL IN |
| Keyway Width | 0.156 INCHES NOMINAL IN |
| Bore Diameter | 1.375 INCHES NOMINAL IN |
| Furnished Items | KEYING FACILITY |
| 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 |
|---|---|
| 157305003 PRIMARY | L & L Boiler Maintenance Inc (USA) |
| Reference | Meaning |
|---|---|
| 157305003 | 5/9 Secondary reference D & J Parts Inc |
NSN 3020-00-427-3418 is a Pulley,groove, manufactured by L & L Boiler Maintenance Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-427-3418 has 1 manufacturer part number on file: 157305003 (L & L Boiler Maintenance Inc).
Key specifications for 157305003: Bore Feature: INCLUDED; Groove Shape: V; Outside Diameter: 3.000 INCHES NOMINAL IN; Keying Facility Type: KEYWAY. 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.