The Lens,window,respirator, cataloged under National Stock Number 4240-01-251-3272, 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 3m Company. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-251-3272 |
| Primary Part Number | 51497 |
| Item Name | Lens,window,respirator |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | 3m Company |
| Status | ACTIVE |
| General Characteristics Item Description | SOLE SOURCE REQUIRED BY STATUTE 6.302 |
| Criticality Code Justification | TEXT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4240-01-251-3272 is a Lens,window,respirator, manufactured by 3m Company, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-01-251-3272 has 3 cross-referenced part numbers: 51497 (3m Company), 51497 (Aearo Company 1 Dba Aearo Div Ao Safety Occupational Prescription Eyewear), 51497 (Aearo Company).
There are 5 known substitutes for 4240-01-251-3272: 8345-00-130-2781, 8345-00-130-2784, 5950-00-411-3631 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 51497: End Item Identification: AMERICAN OPTICAL MODEL 7 STAR SERIES 7700 AND 7800 RESPIRATOR; General Characteristics Item Description: SOLE SOURCE REQUIRED BY STATUTE 6.302; Criticality Code Justification: TEXT. 3 total characteristics are documented in the Federal Logistics Information System.