The Ratchet Band,helmet, cataloged under National Stock Number 4240-01-389-5191, 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 3m Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-389-5191 |
| Primary Part Number | 7000126041 |
| Item Name | Ratchet Band,helmet |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | 3m Company |
| Status | ACTIVE |
| General Characteristics Item Description | PLASTIC; ALLOWS EASIER ADJUSTMENT FOR HELMET AND HOOD ASSEMBLIES |
| 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 |
|---|---|
| 7000126041 PRIMARY | 3m Company (USA) |
| Reference | Meaning |
|---|---|
| W-3261 | 5/9 Secondary reference 3m Company Div Oh&esd |
| W-3261 | 3/9 Design control — primary reference 3m Company |
NSN 4240-01-389-5191 is a Ratchet Band,helmet, manufactured by 3m Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-389-5191 has 1 manufacturer part number on file: 7000126041 (3m Company).
Key specifications for 7000126041: General Characteristics Item Description: PLASTIC; ALLOWS EASIER ADJUSTMENT FOR HELMET AND HOOD ASSEMBLIES; Special Features: COMPONENT OF NIOSH APPROVAL TC-21C-456 AND OTHERS; SOLE SOURCE REQUIRED BY STATUTE 6.302. 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.