PartsTable TECHNICAL DATA SHEET

NSN 5342-01-194-3131Government record, cited

Lock, Couplex5342-01-194-3131

NSN 5342-01-194-3131 · NIIN 011943131 · Part number CL2814-1

Marathonnorco Aerospace, Inc. · FSC 5342 — Hardware, Weapon System · FSG 53 — Hardware and Abrasives · CAGE 08844

Government record, cited

NSN 5342-01-194-3131 — this item is cataloged by the U.S. Government under National Stock Number 5342-01-194-3131. Manufacturer of record part number: CL2814-1.

Also searched as 5342-01-194-3131 · 5342011943131 · NIIN 011943131 · 01-194-3131 · FSC 5342 Hardware, Weapon System · CAGE 08844 · CL2814-1

Nearby stock numbers ← 5342-01-194-3130 Bracket · 5342-01-194-3599 Bracket →

Features

Lock,couplex — FSC 5342
1 manufacturer part number on file
Manufacturer of record: Marathonnorco Aerospace, Inc.

Identification

NSN: 5342-01-194-3131
NIIN: 011943131
FSC: 5342 — Hardware, Weapon System
FSG: 53 — Hardware and Abrasives
Primary part number: CL2814-1
Manufacturer: Marathonnorco Aerospace, Inc.

General Description

The Lock,couplex, cataloged under National Stock Number 5342-01-194-3131, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Marathonnorco Aerospace, Inc.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Lock,couplex
FSC / FSG	5342 — Hardware, Weapon System (FSG 53)
Manufacturers	Marathonnorco Aerospace, Inc. (CAGE 08844)

Technical Specifications

Parameter	Value
NSN	5342-01-194-3131
Primary Part Number	CL2814-1
Item Name	Lock,couplex
FSC / FSG	5342 / 53 — Hardware, Weapon System
Manufacturer	Marathonnorco Aerospace, Inc.
Status	ACTIVE

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
CL2814-1 PRIMARY	Marathonnorco Aerospace, Inc. (USA)

Reference documents

Reference	Meaning
CL2814-1	3/9 Design control — primary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

No interchangeability data on file.

Other items in FSC 5342 — Hardware, Weapon System

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

5342-00-001-1696

5342-00-001-1696 · Item name not on file

5342-00-001-1972

STRAP WEBBING ASSEMBLY

5342-00-001-1980

STRAP WEBBING ASSEMBLY

5342-00-001-2492

BRACKET,FUEL TUBE TO CASE

5342-00-001-2502

BRACKET,QUICK DISC

5342-00-001-3915

CLIP,SPECIAL

5342-00-001-4001

HANDLE ASSEMBLY

5342-00-001-4655

5342-00-001-4655 · Item name not on file

Frequently Asked Questions

What is NSN 5342-01-194-3131?

NSN 5342-01-194-3131 is a Lock,couplex, manufactured by Marathonnorco Aerospace, Inc., classified under FSC 5342, Hardware, Weapon System. Status: active.

What part numbers are listed for NSN 5342-01-194-3131?

NSN 5342-01-194-3131 has 1 manufacturer part number on file: CL2814-1 (Marathonnorco Aerospace, Inc.).

Is NSN 5342-01-194-3131 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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