The Coaming,hatch, cataloged under National Stock Number 2040-01-693-4987, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Coaming,hatch |
| FSC / FSG | 2040 — Marine Hardware and Hull Items (FSG 20) |
| Manufacturers | Lake Shore Systems, Inc. (CAGE 34712) |
| Parameter | Value |
|---|---|
| NSN | 2040-01-693-4987 |
| Primary Part Number | D000018-W01 |
| Item Name | Coaming,hatch |
| 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 |
|---|---|
| D000018-W01 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D000018/ REV B ITEM 4 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| D000018 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
NSN 2040-01-693-4987 is a Coaming,hatch, manufactured by Lake Shore Systems, Inc., classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-693-4987 has 1 manufacturer part number on file: D000018-W01 (Lake Shore Systems, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 2040-01-693-4998, 2040-01-693-4999. Verify interchangeability with system specifications before substitution.
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.