The Protector,hearing, cataloged under National Stock Number 4240-01-519-6066, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Square D Co Monroe Plant. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-519-6066 |
| Primary Part Number | MT15H67FB-01 |
| Item Name | Protector,hearing |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Square D Co Monroe Plant |
| Status | ACTIVE |
| Body Style | HEADSET, COVERED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MT15H67FB-01 PRIMARY | Square D Co Monroe Plant (USA) |
| MT15H67FB-01 | 3m Canada Company (CAN) |
| Reference | Meaning |
|---|---|
| MT15H67FB-01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4240-01-519-6066 is a Protector,hearing, manufactured by Square D Co Monroe Plant, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-519-6066 has 2 manufacturer part numbers on file: MT15H67FB-01 (Square D Co Monroe Plant), MT15H67FB-01 (3m Canada Company).
Key specifications for MT15H67FB-01: Body Style: HEADSET, COVERED; Special Features: EAR DEFENDERS TACTICAL 6S; ACTIVE PROTECTIVE WITH INDIVIDUAL VOLUME CONTROLS ON EACH EAQR CUP; QTY 4 AAA BATTERIES REQUIRED; COMPACT/FOLDABLE WITH ADJUSTABLE HEADBAND; AUDIO INPUT JACK; NRR RATING OF 19 IN THE PASSIVE MODE; COLOR GREY IN; Part Name Assigned by Controlling Agency: TACTICAL 6-S COMPACT/FOLDABLE HEADSET. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.