The Cover,respirator, cataloged under National Stock Number 4240-01-251-3280, 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 Aearo Company. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-251-3280 |
| Primary Part Number | 51555 |
| Item Name | Cover,respirator |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | Aearo Company |
| Status | ACTIVE |
| General Characteristics Item Description | FRONT COVER; W/SET OF 2 SCREWS; NEOPRENE; SOLE SOURCE REQUIRED BY STATUTE 6.302 |
| Criticality Code Justification | TEXT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4240-01-251-3280 is a Cover,respirator, manufactured by Aearo Company, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-01-251-3280 has 4 cross-referenced part numbers: 51555 (Aearo Company), 51555 (American Optical Co), 51555 (3m Company), 51555 (Aearo Company 1 Dba Aearo Div Ao Safety Occupational Prescription Eyewear).
There are 6 known substitutes for 4240-01-251-3280: 5310-00-356-3497, 5930-00-879-8282, 3020-01-011-9358 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 51555: End Item Identification: AMERICAN OPTICAL MODEL 7 STAR SERIES 7800 RESPIRATOR; General Characteristics Item Description: FRONT COVER; W/SET OF 2 SCREWS; NEOPRENE; SOLE SOURCE REQUIRED BY STATUTE 6.302; Criticality Code Justification: TEXT. 3 total characteristics are documented in the Federal Logistics Information System.