The Collar,hatch Cover, cataloged under National Stock Number 2040-01-459-3812, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-459-3812 |
| Item Name | Collar,hatch Cover |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS MATERIAL |
| 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 |
|---|---|
| 703-1554057 PN | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 703-15544057 P/N 111 | 3/2 Design control — primary reference U.S. Government activity |
| 703-15544057 | D/9 Drawing number reference only U.S. Government activity |
NSN 2040-01-459-3812 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): 2040-01-459-3816. Verify interchangeability with system specifications before substitution.
Key specifications for 2040-01-459-3812: General Characteristics Item Description: BRASS MATERIAL; End Item Identification: USED ON ELEVATOR AIRCRAFT (AIRCRAFT CARRIER, CVA(N)65 PART OF THE UPPER STAGE SASS ELEVATOR STS HATCH COVER HANGAR DECK. 1 specification is 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.