The Door Assembly, cataloged under National Stock Number 2040-01-633-7643, 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 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-633-7643 |
| Primary Part Number | 751-7072201-A20L1 |
| Item Name | Door Assembly |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 751-7072201-A20L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| H821-0201-A20L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 751-7072201-A20 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H821-0201-A20 | 3/1 Design control — primary reference U.S. Government activity |
NSN 2040-01-633-7643 is a Door Assembly, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-633-7643 has 3 manufacturer part numbers on file: 751-7072201-A20L1 (Naval Inventory Control Point Mechanicsburg), H821-0201-A20L1 (Naval Inventory Control Point Mechanicsburg), 751-7072201-A20 (Naval Sea Systems Command).
Key specifications for 751-7072201-A20L1: Criticality Code Justification: ZZZY; Part Name Assigned by Controlling Agency: DOOR ASSEMBLY,BREECH; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 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.
NSN 2040-01-633-7643 has DEMIL Code D. 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.