The Lens,helmet,welder's, cataloged under National Stock Number 4240-00-540-2422, 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 L-Tec Welding and Cutting Systems. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4240-00-540-2422 |
| Primary Part Number | 11F19 |
| Item Name | Lens,helmet,welder's |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | L-Tec Welding and Cutting Systems |
| Status | CANCELLED |
| Material | GLASS |
| National Bureau of Standards Shade Number | CO-BS 9 |
| Nondefinitive Spec/std Data | A STYLE AND III TYPE |
| Lens Type | FILTER |
| Departure From Cited Designator | AS MODIFIED BY NATIONAL BUREAU OF STANDARDS SHADE NUMBER |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 11F19 | L-Tec Welding and Cutting Systems (USA) |
| GGG-H-211 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| NORTON MH 9 | Siebe North Inc North Safety Equipment Div (USA) |
| ANSI 87.1 | American National Standards Institute Incorporated Dba American National Standards Institute (USA) |
| M246H NO.9 | Fibre-Metal Products Co Inc (USA) |
| 910F44 | Union Carbide Corp Sub of Dow Co the (USA) |
| M9 | Siebe North Inc North Safety Equipment Div (USA) |
| 50P/9 | North Safety Products L.l.c. Dba North Safety Products (USA) |
| GLENDALE NO. 9 | Glendale Protective Technologies, Inc. (USA) |
| 11F19 | Union Carbide Corp Sub of Dow Co the (USA) |
| KP1981-2 | Lincoln Electric Holdings Inc (USA) |
| 1024090 | Harris Welding and Machine Company (USA) |
| MONARCH NO. 9 | Fibre-Metal Products Co Inc (USA) |
| FILTER WELD NO. 9 | Aearo Company (USA) |
NSN 4240-00-540-2422 is a Lens,helmet,welder's, manufactured by L-Tec Welding and Cutting Systems, classified under FSC 4240 (No Item Name Available). Status: cancelled.
NSN 4240-00-540-2422 has 14 cross-referenced part numbers: 11F19 (L-Tec Welding and Cutting Systems), GGG-H-211 (Federal Specifications Promulgated by General Services Administration Washington DC), NORTON MH 9 (Siebe North Inc North Safety Equipment Div), ANSI 87.1 (American National Standards Institute Incorporated Dba American National Standards Institute), M246H NO.9 (Fibre-Metal Products Co Inc) and 9 more.
There are 9 known substitutes for 4240-00-540-2422: 4320-00-148-1388, 5985-00-195-2713, 7510-00-272-3088 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 11F19: Material: GLASS; Overall Width: 2.000 INCHES NOMINAL IN; Overall Length: 4.250 INCHES NOMINAL IN; National Bureau of Standards Shade Number: CO-BS 9. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 4240-00-540-2422 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.