The Damper,air Duct, cataloged under National Stock Number 2040-01-689-0654, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Gaylord Marine Services, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Damper,air Duct |
| FSC / FSG | 2040 — Marine Hardware and Hull Items (FSG 20) |
| Manufacturers | Gaylord Marine Services, Inc. (CAGE 1T1B2) |
| Parameter | Value |
|---|---|
| NSN | 2040-01-689-0654 |
| Primary Part Number | GMS-DIV*LS-250-400-504-SS-RIGHT |
| Item Name | Damper,air Duct |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Gaylord Marine Services, 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 |
|---|---|
| GMS-DIV*LS-250-400-504-SS-RIGHT PRIMARY | Gaylord Marine Services, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 18-0824/ REV 03 SHEET 6 | C/1 Advisory reference — outside the item-of-supply concept Gaylord Marine Services, Inc. |
NSN 2040-01-689-0654 is a Damper,air Duct, manufactured by Gaylord Marine Services, Inc., classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-689-0654 has 1 manufacturer part number on file: GMS-DIV*LS-250-400-504-SS-RIGHT (Gaylord Marine Services, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-689-2503. 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.