PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7531N95A-12Respirator,air Filtering

North Safety Products L.l.c. Dba North Safety Products · NSN 4240-01-449-5704 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-449-5704 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-449-5704. Primary manufacturer part number: 7531N95A-12.
Features
  • Respirator,air Filtering — FSC 4240
  • Exhaust Valve: NOT INCLUDED
  • Filter Replaceability: REPLACEABLE
  • Filter Type: FILTER PAD
  • Mask Filter Quantity: 10
  • Head Harness: NOT INCLUDED
  • Mask Type: NOSE
  • 3 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Respirator,air Filtering, cataloged under National Stock Number 4240-01-449-5704, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is North Safety Products L.l.c. Dba North Safety Products. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4240-01-449-5704
Primary Part Number7531N95A-12
Item NameRespirator,air Filtering
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerNorth Safety Products L.l.c. Dba North Safety Products
StatusCANCELLED
Exhaust ValveNOT INCLUDED
Filter ReplaceabilityREPLACEABLE
Filter TypeFILTER PAD
Mask Filter Quantity10
Head HarnessNOT INCLUDED
Mask TypeNOSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5340-00-248-0425750031 INTERCHANGEABLE
Fastener,cylinder,spring Loaded
Stewart-Warner Corporation
5310-00-732-0560 INTERCHANGEABLE
Nut,plain,hexagon
1630-00-765-0672750031 INTERCHANGEABLE
Tube Assy,expander
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5975-01-474-8441750-031-16 INTERCHANGEABLE
Conduit,metal,flexible
Glenair, Inc.
Cross-Reference Index
Part NumberManufacturer
7500-31 Siebe North Inc North Safety Equipment Div (USA)
7531N95A-12 PRIMARY North Safety Products L.l.c. Dba North Safety Products (USA)
7531N95 Siebe North Inc North Safety Equipment Div (USA)
Related Parts
5340-00-248-0425INTERCHANGEABLE
FASTENER,CYLINDER,SPRING LOADED
750031
5310-00-732-0560INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1630-00-765-0672INTERCHANGEABLE
TUBE ASSY,EXPANDER
750031
5975-01-474-8441INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
750-031-16

Frequently Asked Questions

What is NSN 4240-01-449-5704?

NSN 4240-01-449-5704 is a Respirator,air Filtering, manufactured by North Safety Products L.l.c. Dba North Safety Products, classified under FSC 4240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4240-01-449-5704?

NSN 4240-01-449-5704 has 3 cross-referenced part numbers: 7500-31 (Siebe North Inc North Safety Equipment Div), 7531N95A-12 (North Safety Products L.l.c. Dba North Safety Products), 7531N95 (Siebe North Inc North Safety Equipment Div).

What NSN replaces 4240-01-449-5704?

There are 4 known substitutes for 4240-01-449-5704: 5340-00-248-0425, 5310-00-732-0560, 1630-00-765-0672 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7531N95A-12?

Key specifications for 7531N95A-12: Exhaust Valve: NOT INCLUDED; Special Features: MASK TYPE, MOUTH AND NOSE; Filter Replaceability: REPLACEABLE; Filter Type: FILTER PAD. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4240-01-449-5704 still in active supply?

NSN 4240-01-449-5704 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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