The Roller,chock, cataloged under National Stock Number 2040-01-413-6540, 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.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-413-6540 |
| Primary Part Number | 5B1-05597 |
| Item Name | Roller,chock |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 5B1-05597 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 5D3-03787-4 | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5B1-05597-1 | 5/9 Secondary reference Lake Shore Systems, Inc. |
NSN 2040-01-413-6540 is a Roller,chock, manufactured by Lake Shore Systems, Inc., classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-413-6540 has 2 manufacturer part numbers on file: 5B1-05597 (Lake Shore Systems, Inc.), 5D3-03787-4 (Lake Shore Systems, Inc.).
Key specifications for 5B1-05597: End Item Identification: GUIDE TUBE. 0 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.