The Toggle Arm,dog Assembly,hatch, cataloged under National Stock Number 2040-01-487-0378, 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 Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-487-0378 |
| Primary Part Number | 122-6776881 PC 24 |
| Item Name | Toggle Arm,dog Assembly,hatch |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 122-6776881 PC 24 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 122-6776881 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2040-01-487-0378 is a Toggle Arm,dog Assembly,hatch, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-487-0378 has 1 manufacturer part number on file: 122-6776881 PC 24 (Naval Sea Systems Command).
4 possible matches (shared part number, not a government interchangeability claim): 3040-01-487-0727, 2040-01-487-1684, 3120-01-487-8272. Verify interchangeability with system specifications before substitution.
Key specifications for 122-6776881 PC 24: Overall Width: 3.125 INCHES NOMINAL IN; Special Features: EXTREME END TO END HOLES 18" NOMINAL LENGTH; Part Name Assigned by Controlling Agency: CONNECTING ARM; End Item Identification: AIRCRAFT CARRIER CVN 74 HATCHES BALLISTIC IN TRUNK US WPNS ELEVATOR SECURING DEVICE ASSEMBLY. 0 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 2040-01-487-0378 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.