The Protector,hearing, cataloged under National Stock Number 4240-01-539-6001, 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 Rexton Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-539-6001 |
| Primary Part Number | ER9 |
| Item Name | Protector,hearing |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | Rexton Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ER9 PRIMARY | Rexton Inc (USA) |
NSN 4240-01-539-6001 is a Protector,hearing, manufactured by Rexton Inc, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-01-539-6001 has 1 cross-referenced part number: ER9 (Rexton Inc).
There are 4 known substitutes for 4240-01-539-6001: 2930-00-073-0472, 4730-00-922-7889, 4730-01-269-1439 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for ER9: Part Name Assigned by Controlling Agency: FILTER EAR DEFENDER. 1 total characteristics are documented in the Federal Logistics Information System.