The Window,marine, cataloged under National Stock Number 2040-01-502-8808, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-502-8808 |
| Primary Part Number | 122-5486623 ITEM43D4 |
| Item Name | Window,marine |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Frame Material | STEEL |
| Frame Type | FLANGED |
| Frame Shape | ROUND |
| Reference Number Differentiating Characteristics | QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLE AS DIFFERENTIATED BY SPECIAL TEST FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 122-5486623 ITEM43D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 122-5486623D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 122-5486623 ITEM 043D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 122-5486623 | D/9 Drawing number reference only Naval Sea Systems Command |
| 122-5486623 ITEM 043 | 5/1 Secondary reference Naval Sea Systems Command |
| 122-5486623 ITEM 43 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 2040-01-502-8808 is a Window,marine, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-502-8808 has 3 manufacturer part numbers on file: 122-5486623 ITEM43D4 (Naval Inventory Control Point Mechanicsburg), 122-5486623D4 (Naval Inventory Control Point Mechanicsburg), 122-5486623 ITEM 043D4 (Naval Inventory Control Point Mechanicsburg).
4 possible matches (shared part number, not a government interchangeability claim): 5365-01-733-0665, 3040-01-733-0673, 5365-01-733-0818. Verify interchangeability with system specifications before substitution.
Key specifications for 122-5486623 ITEM43D4: Criticality Code Justification: ZZZY; Frame Material: STEEL; Frame Type: FLANGED; Frame Shape: ROUND. 5 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.
NSN 2040-01-502-8808 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.