The Rescue Kit,air Hammer, cataloged under National Stock Number 4240-01-042-6401, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-042-6401 |
| Item Name | Rescue Kit,air Hammer |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | AIR HAMMER WILL OPERATE W/FRESH AIR TANKS,COMPRESSORS,NITROGEN BOTTLES,CASCADE SYSTEMS OR @AIR BRAKE OUTLETS,C/O 1 EA OF FOLLOWING AJAX TOOL PART NUMBERS,1974 HAMMER,3300 SAFETY RETAINER,5315 METAL CARRYING CASE,8253 REGULATOR,993 FEMALE COUPLER,996 MALE COUPLER,998 15 FT HOSE,666 PINCH BAR,2 EA OF FOLLOWING P/N 992 MALE CONNECTOR,3159 DOUBLE BLADE PANEL CUTTER,3156 KWIK CUTTER FT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 711 | 5/9 Secondary reference Ajax Tool Works, Inc. Dba Ajax Tools |
| 711RK | 3/9 Design control — primary reference Ajax Tool Works, Inc. Dba Ajax Tools |
NSN 4240-01-042-6401 is a Rescue Kit,air Hammer, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-042-6401: General Characteristics Item Description: AIR HAMMER WILL OPERATE W/FRESH AIR TANKS,COMPRESSORS,NITROGEN BOTTLES,CASCADE SYSTEMS OR @AIR BRAKE OUTLETS,C/O 1 EA OF FOLLOWING AJAX TOOL PART NUMBERS,1974 HAMMER,3300 SAFETY RETAINER,5315 METAL CARRYING CASE,8253 REGULATOR,993 FEMALE COUPLER,996 MALE COUPLER,998 15 FT HOSE,666 PINCH BAR,2 EA OF FOLLOWING P/N 992 MALE CONNECTOR,3159 DOUBLE BLADE PANEL CUTTER,3156 KWIK CUTTER FT. 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.