The Liner,hatch Assy, cataloged under National Stock Number 2040-01-486-3421, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-486-3421 |
| Primary Part Number | 167-7066804-140 |
| Item Name | Liner,hatch Assy |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 167-7066804-140 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H547-2002-140 | 5/2 Secondary reference U.S. Government activity |
| 7066804 | D/9 Drawing number reference only Naval Sea Systems Command |
| H547-2002 | D/9 Drawing number reference only U.S. Government activity |
NSN 2040-01-486-3421 is a Liner,hatch Assy, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-486-3421 has 1 manufacturer part number on file: 167-7066804-140 (Naval Sea Systems Command).
4 possible matches (shared part number, not a government interchangeability claim): 2040-01-486-3435, 2040-01-486-3819, 2040-01-486-6120. Verify interchangeability with system specifications before substitution.
Key specifications for 167-7066804-140: Overall Length: 6.000 INCHES NOMINAL IN; Overall Width: 1.500 INCHES NOMINAL IN; Special Features: ITEM HAS 15 DEGREE CURVE ALONG ITS LENGTH; MATERIAL SPEC IS QQ-S-763 CLASS 304, COND A; NHA WEAPON SHIPPING TRUNK UPPER HATCH ASSEMBLY; End Item Identification: LOS ANGELES CLASS SSN (688). 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.