Catch, Left, Outboard2040-01-278-2181

NSN 2040-01-278-2181 · NIIN 012782181 · Part number 5599631-1

Lockheed Martin Corporation Div Rotary and Mission Systems · FSC 2040 — Marine Hardware and Hull Items · FSG 20 — Ship and Marine Equipment · CAGE 38597

Government record, cited

NSN 2040-01-278-2181 — this item is cataloged by the U.S. Government under National Stock Number 2040-01-278-2181. Manufacturer of record part number: 5599631-1.

Also searched as 2040-01-278-2181 · 2040012782181 · NIIN 012782181 · 01-278-2181 · FSC 2040 Marine Hardware and Hull Items · CAGE 38597 · 5599631-1

Nearby stock numbers ← 2040-01-277-9979 Catch, Left, Inboard · 2040-01-278-2182 Catch, Right, Inboard →

Features

Catch,left,outboard — FSC 2040
General Characteristics Item Description: STEEL,MIL-S-5626,COND D-4; 3.064 IN. MIN AND 3.066 IN. MAX LG; 2.810 IN. WD; 1.497 IN. MIN AND 1.499 IN. MAX THK; 1 HOLE 0.875 IN. MIN AND 0.877 IN. MAX DIA; 1 HOLE 0.625 IN. DIA IN
2 manufacturer part numbers on file
Manufacturer of record: Lockheed Martin Corporation Div Rotary and Mission Systems

Identification

NSN: 2040-01-278-2181
NIIN: 012782181
FSC: 2040 — Marine Hardware and Hull Items
FSG: 20 — Ship and Marine Equipment
Primary part number: 5599631-1
Manufacturer: Lockheed Martin Corporation Div Rotary and Mission Systems

General Description

The Catch,left,outboard, cataloged under National Stock Number 2040-01-278-2181, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 1 specification, 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2040-01-278-2181
Primary Part Number	5599631-1
Item Name	Catch,left,outboard
FSC / FSG	2040 / 20 — Marine Hardware and Hull Items
Manufacturer	Lockheed Martin Corporation Div Rotary and Mission Systems
Status	ACTIVE
General Characteristics Item Description	STEEL,MIL-S-5626,COND D-4; 3.064 IN. MIN AND 3.066 IN. MAX LG; 2.810 IN. WD; 1.497 IN. MIN AND 1.499 IN. MAX THK; 1 HOLE 0.875 IN. MIN AND 0.877 IN. MAX DIA; 1 HOLE 0.625 IN. DIA IN

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

Cross-Reference Index

Part Number	Manufacturer
5599631-1	Naval Sea Systems Command (USA)
5599631-1 PRIMARY	Lockheed Martin Corporation Div Rotary and Mission Systems (USA)

No interchangeability data on file.

Other items in FSC 2040 — Marine Hardware and Hull Items

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2040-00-003-6975

ROLLER,CHOCK

2040-00-004-4739

2040-00-004-4739 · Item name not on file

2040-00-007-1136

HOOK,BOAT

2040-00-008-4790

PLATE,RUDDER

2040-00-008-4792

KEEL COOLER

2040-00-008-9796

PIN,PUSHING KNEE ASSEMBLY

2040-00-008-9797

GRATING ASSEMBLY,FORWARD PORT

2040-00-008-9798

GRATING ASSEMBLY,FORWARD STARBOA

Frequently Asked Questions

What is NSN 2040-01-278-2181?

NSN 2040-01-278-2181 is a Catch,left,outboard, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.

What part numbers are listed for NSN 2040-01-278-2181?

NSN 2040-01-278-2181 has 2 manufacturer part numbers on file: 5599631-1 (Naval Sea Systems Command), 5599631-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).

What are the specifications of 5599631-1?

Key specifications for 5599631-1: General Characteristics Item Description: STEEL,MIL-S-5626,COND D-4; 3.064 IN. MIN AND 3.066 IN. MAX LG; 2.810 IN. WD; 1.497 IN. MIN AND 1.499 IN. MAX THK; 1 HOLE 0.875 IN. MIN AND 0.877 IN. MAX DIA; 1 HOLE 0.625 IN. DIA IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 2040-01-278-2181 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.

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