Lock Assembly5342-00-421-6660

NSN 5342-00-421-6660 · NIIN 004216660 · Part number 9M140-7-300

The Boeing Company Div Defense · FSC 5342 — Hardware, Weapon System · FSG 53 — Hardware and Abrasives · CAGE 76301

Government record, cited

NSN 5342-00-421-6660 — this item is cataloged by the U.S. Government under National Stock Number 5342-00-421-6660. Manufacturer of record part number: 9M140-7-300.

Also searched as 5342-00-421-6660 · 5342004216660 · NIIN 004216660 · 00-421-6660 · FSC 5342 Hardware, Weapon System · CAGE 76301 · 9M140-7-300

Nearby stock numbers ← 5342-00-421-6612 Fitting, End, Column · 5342-00-421-6695 Coupling, Clamp, Grooved →

Features

Lock Assembly — FSC 5342
1 manufacturer part number on file
Manufacturer of record: The Boeing Company Div Defense

Identification

NSN: 5342-00-421-6660
NIIN: 004216660
FSC: 5342 — Hardware, Weapon System
FSG: 53 — Hardware and Abrasives
Primary part number: 9M140-7-300
Manufacturer: The Boeing Company Div Defense

General Description

The Lock Assembly, cataloged under National Stock Number 5342-00-421-6660, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Lock Assembly
FSC / FSG	5342 — Hardware, Weapon System (FSG 53)
Manufacturers	The Boeing Company Div Defense (CAGE 76301)

Technical Specifications

Parameter	Value
NSN	5342-00-421-6660
Primary Part Number	9M140-7-300
Item Name	Lock Assembly
FSC / FSG	5342 / 53 — Hardware, Weapon System
Manufacturer	The Boeing Company Div Defense
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
9M140-7-300 PRIMARY	The Boeing Company Div Defense (USA)

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 5342-00-421-6660?

NSN 5342-00-421-6660 is a Lock Assembly, manufactured by The Boeing Company Div Defense, classified under FSC 5342, Hardware, Weapon System. Status: active.

What part numbers are listed for NSN 5342-00-421-6660?

NSN 5342-00-421-6660 has 1 manufacturer part number on file: 9M140-7-300 (The Boeing Company Div Defense).

Is NSN 5342-00-421-6660 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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