The Collar,hatch Cover, cataloged under National Stock Number 2040-01-463-4301, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2040-01-463-4301 |
| Item Name | Collar,hatch Cover |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Specification/standard Data | 80064-MIL-C-895 GOVERNMENT SPECIFICATION |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1554057 | D/9 Drawing number reference only U.S. Government activity |
| 703-1554029 P/N 59 | 5/2 Secondary reference U.S. Government activity |
| 703-1554057 P/N 114 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2040-01-463-4301 is a Collar,hatch Cover, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3020-01-463-5125. Verify interchangeability with system specifications before substitution.
Key specifications for 2040-01-463-4301: Specification/standard Data: 80064-MIL-C-895 GOVERNMENT SPECIFICATION; End Item Identification: HATCH COVER ON AIRCRAFT CARRIER CVA(N) 65, AIRCRAFT ELEVATOR.; Material: COPPER ALLOY. 2 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.