| Item Name | Lens Helmet Welders |
| Federal Supply Group (FSG) | Firefighting Rescue and Safety Equipment and Environmental Protection Equipment and Materials |
| Federal Supply Class (FSC) | 4240 Safety and Rescue Equipment |
| National Item Identification Number (NIIN) | 00-540-2423 (005402423) |
| NCB Code | USA (00) |
| Manufacturer | Siebe North Inc, Fibre Metal Products Co The |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NORTON MH 7 | siebe north inc | lens helmet welders | RFQ |
| MONARCH NO. 7 | fibre metal products co the | lens helmet welders | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ZZZT | Nondefinitive Spec/Std Data | A STYLE AND III TYPE |
| ZZZX | Departure From Cited Designator | AS MODIFIED BY NATIONAL BUREAU OF STANDARDS SHADE NUMBER |
| MATT | Material | GLASS |
| BLGP | Lens Type | FILTER |
| MRC | Decoded Requirement | Clear Text Reply |
| ABMK | Overall Width | 2.000 INCHES NOMINAL |
| ABHP | Overall Length | 4.250 INCHES NOMINAL |
| BSHC | National Bureau Of Standards Shade Number | CO-BS 7 |
| Relevant Components for NSN - 4240-00-540-2423, 4240005402423 | ||||
| 4240-01-497-5068 (4240014975068) | 4240-01-409-2006 (4240014092006) | 4220-01-506-4047 (4220015064047) | 4210-01-534-0530 (4210015340530) | |
| 4240-01-583-5232 (4240015835232) | 4220-01-551-5846 (4220015515846) | 4235-01-586-8307 (4235015868307) | 4210-00-138-2252 (4210001382252) | |
| 4240-00-540-2424 (4240005402424) | 4220-01-517-5824 (4220015175824) | 4240-01-263-7535 (4240012637535) | 4220-00-065-5677 (4220000655677) | |
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