PartsTable TECHNICAL DATA SHEET

NSN 2040-01-495-3103Government record, cited

Cover, Hatch2040-01-495-3103

NSN 2040-01-495-3103 · NIIN 014953103 · Part number 594-6985290-A1

Naval Sea Systems Command · FSC 2040 — Marine Hardware and Hull Items · FSG 20 — Ship and Marine Equipment · CAGE 53711

Government record, cited

NSN 2040-01-495-3103 — this item is cataloged by the U.S. Government under National Stock Number 2040-01-495-3103. Manufacturer of record part number: 594-6985290-A1.

Also searched as 2040-01-495-3103 · 2040014953103 · NIIN 014953103 · 01-495-3103 · FSC 2040 Marine Hardware and Hull Items · CAGE 53711 · 594-6985290-A1 · H541-0284-A1 · 6985290 · H541-0284

Nearby stock numbers ← 2040-01-495-1673 Stopper Assembly, Chain · 2040-01-495-4231 Cover, Hatch →

Features

Cover,hatch — FSC 2040
Material: STEEL
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command

Identification

NSN: 2040-01-495-3103
NIIN: 014953103
FSC: 2040 — Marine Hardware and Hull Items
FSG: 20 — Ship and Marine Equipment
Primary part number: 594-6985290-A1
Manufacturer: Naval Sea Systems Command

General Description

The Cover,hatch, cataloged under National Stock Number 2040-01-495-3103, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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	2040-01-495-3103
Primary Part Number	594-6985290-A1
Item Name	Cover,hatch
FSC / FSG	2040 / 20 — Marine Hardware and Hull Items
Manufacturer	Naval Sea Systems Command
Status	ACTIVE
Material	STEEL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL D — Destroy Item
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 7

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

2040-01-495-4231594-6985290-A3 POSSIBLE MATCH

COVER,HATCH

Possible match (shared part number)Naval Sea Systems Command

3040-01-495-4749594-6985290-A9 POSSIBLE MATCH

CONNECTING LINK,RIGID

Possible match (shared part number)Naval Sea Systems Command

3040-01-495-4750594-6985290-A21 POSSIBLE MATCH

CONNECTING LINK,RIGID

Possible match (shared part number)Naval Sea Systems Command

2040-01-495-9587594-6985290-A2 POSSIBLE MATCH

COVER,HATCH

Possible match (shared part number)Naval Sea Systems Command

5315-01-643-4404EB211015947 POSSIBLE MATCH

PIN,STRAIGHT,HEADLESS

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

5310-01-707-6362594-6985290-95 POSSIBLE MATCH

WASHER,FLAT

Possible match (shared part number)Naval Sea Systems Command

9330-01-707-6390594-6985290-36 POSSIBLE MATCH

PLASTIC SHEET

Possible match (shared part number)Naval Sea Systems Command

Cross-Reference Index

Part Number	Manufacturer
594-6985290-A1 PRIMARY	Naval Sea Systems Command (USA)

Reference documents

Reference	Meaning
H541-0284-A1	5/2 Secondary reference U.S. Government activity
6985290	D/9 Drawing number reference only Naval Sea Systems Command
H541-0284	D/9 Drawing number reference only U.S. Government activity

Related Parts

2040-01-495-4231POSSIBLE MATCH

COVER,HATCH

594-6985290-A3

3040-01-495-4749POSSIBLE MATCH

CONNECTING LINK,RIGID

594-6985290-A9

3040-01-495-4750POSSIBLE MATCH

CONNECTING LINK,RIGID

594-6985290-A21

2040-01-495-9587POSSIBLE MATCH

COVER,HATCH

594-6985290-A2

5315-01-643-4404POSSIBLE MATCH

PIN,STRAIGHT,HEADLESS

EB211015947

5310-01-707-6362POSSIBLE MATCH

WASHER,FLAT

594-6985290-95

9330-01-707-6390POSSIBLE MATCH

PLASTIC SHEET

594-6985290-36

Frequently Asked Questions

What is NSN 2040-01-495-3103?

NSN 2040-01-495-3103 is a Cover,hatch, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.

What part numbers are listed for NSN 2040-01-495-3103?

NSN 2040-01-495-3103 has 1 manufacturer part number on file: 594-6985290-A1 (Naval Sea Systems Command).

What NSN replaces 2040-01-495-3103?

7 possible matches (shared part number, not a government interchangeability claim): 2040-01-495-4231, 3040-01-495-4749, 3040-01-495-4750. Verify interchangeability with system specifications before substitution.

What are the specifications of 594-6985290-A1?

Key specifications for 594-6985290-A1: Special Features: FAIRING ASSEMBLY,ITEMS INCLUDE 1 FAIRING COVER AFT,1 FAIRING COVER STBD,1 FAIRING COVER MIDDLE,3 COVER PLATE STEEL 0.250 THK, MISCELLANEOUS ITEMS.; End Item Identification: WEAPON SYSTEM:LOS ANGELES CLASS CVN; Material: STEEL. 1 specification is documented in the U.S. Government catalog.

Is NSN 2040-01-495-3103 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.

What is the DEMIL code for NSN 2040-01-495-3103?

NSN 2040-01-495-3103 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.

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.

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