The Screen,respirator, cataloged under National Stock Number 4240-01-194-4344, 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 Hess Manufacturing Inc Div Blast-It-All. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-194-4344 |
| Primary Part Number | 77-6 |
| Item Name | Screen,respirator |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Hess Manufacturing Inc Div Blast-It-All |
| Status | ACTIVE |
| General Characteristics Item Description | HEAVY METAL BLASTING SCREEN |
| 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 |
|---|---|
| 77-6 PRIMARY | Hess Manufacturing Inc Div Blast-It-All (USA) |
NSN 4240-01-194-4344 is a Screen,respirator, manufactured by Hess Manufacturing Inc Div Blast-It-All, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-194-4344 has 1 manufacturer part number on file: 77-6 (Hess Manufacturing Inc Div Blast-It-All).
Key specifications for 77-6: General Characteristics Item Description: HEAVY METAL BLASTING SCREEN; End Item Identification: AIR RESPIRATOR. 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.