The Sheave Assembly, cataloged under National Stock Number 2040-01-442-4045, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-442-4045 |
| Primary Part Number | 7D5-05660 REV B IT NO.6 |
| Item Name | Sheave Assembly |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | FOR MATERIAL SSEE DRAWINGS |
| 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 |
|---|---|
| 7D5-05660 REV B IT NO.6 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 2D3-05666-1 | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7D5-05660 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
NSN 2040-01-442-4045 is a Sheave Assembly, manufactured by Lake Shore Systems, Inc., classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-442-4045 has 2 manufacturer part numbers on file: 7D5-05660 REV B IT NO.6 (Lake Shore Systems, Inc.), 2D3-05666-1 (Lake Shore Systems, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 2040-01-442-4048, 2040-01-442-8601, 2040-01-443-1482. Verify interchangeability with system specifications before substitution.
Key specifications for 7D5-05660 REV B IT NO.6: General Characteristics Item Description: FOR MATERIAL SSEE DRAWINGS; End Item Identification: DAVIT,BOAT. 1 specification is 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.