The Plate,deck,access, cataloged under National Stock Number 2040-01-676-6620, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Defender Industries, Inc. Dba Defender Industries Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-676-6620 |
| Primary Part Number | DP44-B |
| Item Name | Plate,deck,access |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Defender Industries, Inc. Dba Defender Industries Inc |
| Status | ACTIVE |
| Opening Diameter | 4.0 INCHES NOMINAL IN |
| Plate Outside Diameter | 6.125 INCHES NOMINAL IN |
| Key | NOT INCLUDED |
| Cap Retaining Chain | NOT INCLUDED |
| Flange Mounting Hole Quantity | 6 |
| Cap Markings | DIAMOND CUT (CENTER STYLE) |
| Cap Type | THREADED |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2040-01-676-6620 is a Plate,deck,access, manufactured by Defender Industries, Inc. Dba Defender Industries Inc, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-676-6620 has 2 manufacturer part numbers on file: DP44-B (Defender Industries, Inc. Dba Defender Industries Inc), A001 (Defender Industries, Inc. Dba Defender Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-708-0855. Verify interchangeability with system specifications before substitution.
Key specifications for DP44-B: Opening Diameter: 4.0 INCHES NOMINAL IN; Plate Outside Diameter: 6.125 INCHES NOMINAL IN; Key: NOT INCLUDED; Cap Retaining Chain: NOT INCLUDED. 8 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.