The Pulley,groove, cataloged under National Stock Number 3020-01-438-0303, 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 Lake Shore Systems, Inc.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-438-0303 |
| Primary Part Number | 7D3-05335 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Groove Shape | U |
| Outside Diameter | 30.000 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 27.5000 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Bearing Type | ROLLER |
| 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 |
|---|---|
| 7D5-04934 ITEM 85 | Lake Shore Systems, Inc. (USA) |
| 7D3-05335 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7D5-04913 IT NO | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| 7D3-5335 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| 7D5-04934 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
NSN 3020-01-438-0303 is a Pulley,groove, manufactured by Lake Shore Systems, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-438-0303 has 2 manufacturer part numbers on file: 7D5-04934 ITEM 85 (Lake Shore Systems, Inc.), 7D3-05335 (Lake Shore Systems, Inc.).
Key specifications for 7D3-05335: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Bearing Quantity: 1; Split Hub Feature: NOT INCLUDED. 15 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.