PartsTable TECHNICAL DATA SHEET
NSN 4240-01-646-1032Government record, cited

Lens, Helmet, Welder's4240-01-646-1032

NSN 4240-01-646-1032 · NIIN 016461032 · Part number RAD64005001
Airgas Usa, Llc Dba Airgas Div North Division · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 24839
Government record, cited
NSN 4240-01-646-1032 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-646-1032. Manufacturer of record part number: RAD64005001.
Also searched as  4240-01-646-1032 · 4240016461032 · NIIN 016461032 · 01-646-1032 · FSC 4240 Safety and Rescue Equipment · CAGE 24839 · RAD64005001
Nearby stock numbers  ·
Features
  • Lens,helmet,welder's — FSC 4240
  • Lens Type: FILTER
  • Material: GLASS
  • 1 manufacturer part number on file
  • Manufacturer of record: Airgas Usa, Llc Dba Airgas Div North Division
Identification
  • NSN: 4240-01-646-1032
  • NIIN: 016461032
  • FSC: 4240 — Safety and Rescue Equipment
  • FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
  • Primary part number: RAD64005001
  • Manufacturer: Airgas Usa, Llc Dba Airgas Div North Division
General Description

The Lens,helmet,welder's, cataloged under National Stock Number 4240-01-646-1032, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Airgas Usa, Llc Dba Airgas Div North Division. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-646-1032
Primary Part NumberRAD64005001
Item NameLens,helmet,welder's
FSC / FSG4240 / 42 — Safety and Rescue Equipment
ManufacturerAirgas Usa, Llc Dba Airgas Div North Division
StatusACTIVE
Lens TypeFILTER
MaterialGLASS
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
RAD64005001 PRIMARY Airgas Usa, Llc Dba Airgas Div North Division (USA)
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 4240-01-646-1032?

NSN 4240-01-646-1032 is a Lens,helmet,welder's, manufactured by Airgas Usa, Llc Dba Airgas Div North Division, classified under FSC 4240, Safety and Rescue Equipment. Status: active.

What part numbers are listed for NSN 4240-01-646-1032?

NSN 4240-01-646-1032 has 1 manufacturer part number on file: RAD64005001 (Airgas Usa, Llc Dba Airgas Div North Division).

What are the specifications of RAD64005001?

Key specifications for RAD64005001: Lens Type: FILTER; Overall Length: 4.250 INCHES NOMINAL IN; Overall Width: 2.000 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: LENS,HELMET,WELDER. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4240-01-646-1032 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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