NSN 2040-00-554-3537 · NIIN 005543537 · Part number 803-6397261 ASSY 21
Naval Sea Systems Command · FSC 2040 — Marine Hardware and Hull Items · FSG 20 — Ship and Marine Equipment · CAGE 53711
Government record, cited
NSN 2040-00-554-3537 — this item is cataloged by the U.S. Government under National Stock Number 2040-00-554-3537. Manufacturer of record part number: 803-6397261 ASSY 21.
The Door,metal,marine Structural, cataloged under National Stock Number 2040-00-554-3537, 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 15 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2040-00-554-3537
Primary Part Number
803-6397261 ASSY 21
Item Name
Door,metal,marine Structural
FSC / FSG
2040 / 20 — Marine Hardware and Hull Items
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Operational Direction
LEFT-HAND
Quick Operating Feature
NOT INCLUDED
Dog Location
ON FRAME
Fixed Light
NOT INCLUDED
Design Type
WATERTIGHT
Opening Length
54.000 INCHES NOMINAL IN
Opening Corner Radius
8.875 INCHES NOMINAL IN
Opening Width
26.000 INCHES NOMINAL IN
Test Pressure Rating
28 PSI TEST PRESSURE
Passing Scuttle
NOT INCLUDED
Panel Thickness
0.120 INCHES NOMINAL IN
Nondefinitive Spec/std Data
374,W/O HASP ASSEMBLY W
Dog Quantity
10
Material
STEEL
Dog Type
ROTATING
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2040-00-554-6213POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
Possible match (shared part number)
2040-00-555-6384803-6397261POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
Possible match (shared part number)Naval Sea Systems Command
2040-00-912-6185803-63973261 ASSY 18POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
Possible match (shared part number)Naval Sea Systems Command
2040-01-434-6542803-6397261-32POSSIBLE MATCH
DOG,DOOR,MARINE
Possible match (shared part number)Naval Sea Systems Command
2040-01-451-6950803-6397261-37A ASSY IPOSSIBLE MATCH
HASP,DOOR
Possible match (shared part number)Naval Sea Systems Command
2040-01-461-6391803-6397261 ASSY 10POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
Possible match (shared part number)Naval Sea Systems Command
5340-01-648-4484803-6397261 PC NO. 40POSSIBLE MATCH
LOCK,ELECTROMAGNETIC
Possible match (shared part number)Naval Sea Systems Command
C/1Advisory reference — outside the item-of-supply concept
Naval Sea Systems Command
Related Parts
2040-00-554-6213POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
2040-00-555-6384POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
803-6397261
2040-00-912-6185POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
803-63973261 ASSY 18
2040-01-434-6542POSSIBLE MATCH
DOG,DOOR,MARINE
803-6397261-32
2040-01-451-6950POSSIBLE MATCH
HASP,DOOR
803-6397261-37A ASSY I
2040-01-461-6391POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
803-6397261 ASSY 10
5340-01-648-4484POSSIBLE MATCH
LOCK,ELECTROMAGNETIC
803-6397261 PC NO. 40
Frequently Asked Questions
What is NSN 2040-00-554-3537?
NSN 2040-00-554-3537 is a Door,metal,marine Structural, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
What part numbers are listed for NSN 2040-00-554-3537?
NSN 2040-00-554-3537 has 1 manufacturer part number on file: 803-6397261 ASSY 21 (Naval Sea Systems Command).
What NSN replaces 2040-00-554-3537?
7 possible matches (shared part number, not a government interchangeability claim): 2040-00-554-6213, 2040-00-555-6384, 2040-00-912-6185. Verify interchangeability with system specifications before substitution.
What are the specifications of 803-6397261 ASSY 21?
Key specifications for 803-6397261 ASSY 21: Operational Direction: LEFT-HAND; Quick Operating Feature: NOT INCLUDED; Dog Location: ON FRAME; Fixed Light: NOT INCLUDED. 15 specifications are documented in the U.S. Government catalog.
Is NSN 2040-00-554-3537 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.