Filter Unit, Gas-Particulate4240-01-666-0323

NSN 4240-01-666-0323 · NIIN 016660323

FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment

Government record, cited

Also searched as 4240-01-666-0323 · 4240016660323 · NIIN 016660323 · 01-666-0323 · FSC 4240 Safety and Rescue Equipment · 5-19-15149-100 · 402-H008549-031

Nearby stock numbers ← 4240-01-665-8820 Fall Arrester Assembly, Guided Ty · 4240-01-666-0378 Shelter System, Collective Protec →

Features

Filter Unit,gas-Particulate — FSC 4240

Identification

NSN: 4240-01-666-0323
NIIN: 016660323
FSC: 4240 — Safety and Rescue Equipment
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment

General Description

The Filter Unit,gas-Particulate, cataloged under National Stock Number 4240-01-666-0323, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Filter Unit,gas-Particulate
FSC / FSG	4240 — Safety and Rescue Equipment (FSG 42)

Technical Specifications

Parameter	Value
NSN	4240-01-666-0323
Item Name	Filter Unit,gas-Particulate
FSC / FSG	4240 / 42 — Safety and Rescue Equipment
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL F — Mutilate — Cut
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
5-19-15149-100	7/2 Vendor item drawing reference U.S. Government activity
402-H008549-031	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4240 — Safety and Rescue Equipment

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

4240-00-001-1515

4240-00-001-1515 · Item name not on file

4240-00-001-2684

4240-00-001-2684 · Item name not on file

4240-00-006-0022

HOSE,EVACUATION

4240-00-007-4576

4240-00-007-4576 · Item name not on file

4240-00-007-8182

4240-00-007-8182 · Item name not on file

4240-00-007-8183

4240-00-007-8183 · Item name not on file

4240-00-007-8184

4240-00-007-8184 · Item name not on file

4240-00-007-8185

4240-00-007-8185 · Item name not on file

Frequently Asked Questions

What is NSN 4240-01-666-0323?

NSN 4240-01-666-0323 is a Filter Unit,gas-Particulate, classified under FSC 4240, Safety and Rescue Equipment. Status: active.

Is NSN 4240-01-666-0323 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.

What is the DEMIL code for NSN 4240-01-666-0323?

NSN 4240-01-666-0323 has DEMIL Code F. 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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