PartsTable TECHNICAL DATA SHEET

NSN 5340-01-667-9143Government record, cited

Cover, Access5340-01-667-9143

NSN 5340-01-667-9143 · NIIN 016679143 · Part number 254939

Airgas Usa, Llc · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 3WRY5

Government record, cited

NSN 5340-01-667-9143 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-667-9143. Manufacturer of record part number: 254939.

Also searched as 5340-01-667-9143 · 5340016679143 · NIIN 016679143 · 01-667-9143 · FSC 5340 Hardware, Commercial · CAGE 3WRY5 · 254939 · MIL254939

Nearby stock numbers ← 5340-01-667-9132 Lever, Manual Control · 5340-01-667-9144 Cap, Protective, Dust and Moisture →

Features

Cover,access — FSC 5340
3 manufacturer part numbers on file
Manufacturer of record: Airgas Usa, Llc

Identification

NSN: 5340-01-667-9143
NIIN: 016679143
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 254939
Manufacturer: Airgas Usa, Llc

General Description

The Cover,access, cataloged under National Stock Number 5340-01-667-9143, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Airgas Usa, Llc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.

Technical Specifications

Parameter	Value
NSN	5340-01-667-9143
Primary Part Number	254939
Item Name	Cover,access
FSC / FSG	5340 / 53 — Hardware, Commercial
Manufacturer	Airgas Usa, Llc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X
Unit of Issue	EA

Cross-Reference Index

Part Number	Manufacturer
MIL254939	Airgas Usa, Llc (USA)
254939 PRIMARY	Airgas Usa, Llc (USA)
254939	Airgas Usa Llc (USA)

Reference documents

Reference	Meaning
254939	3/9 Design control — primary reference Miller Electric Mfg. Co.

No interchangeability data on file.

Other items in FSC 5340 — Hardware, Commercial

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

5340-00-000-0068

COVER,ACCESS

5340-00-000-0132

SEAT,HELICAL COMPRESSION SPRING

5340-00-000-8150

5340-00-000-8150 · Item name not on file

5340-00-001-1251

5340-00-001-1251 · Item name not on file

5340-00-001-1264

STRAP,WEBBING

5340-00-001-1265

STRAP,WEBBING

5340-00-001-1266

STRAP,WEBBING

5340-00-001-1275

HANDLE,DOOR

Frequently Asked Questions

What is NSN 5340-01-667-9143?

NSN 5340-01-667-9143 is a Cover,access, manufactured by Airgas Usa, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.

What part numbers are listed for NSN 5340-01-667-9143?

NSN 5340-01-667-9143 has 3 manufacturer part numbers on file: MIL254939 (Airgas Usa, Llc), 254939 (Airgas Usa, Llc), 254939 (Airgas Usa Llc).

What are the specifications of 254939?

Key specifications for 254939: Part Name Assigned by Controlling Agency: COVER,ACCESS. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5340-01-667-9143 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). 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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