The Harness Assembly,mask,oxygen, cataloged under National Stock Number 4240-01-503-6901, 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 Gentex Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4240-01-503-6901 |
| Primary Part Number | 01A11293-1 |
| Item Name | Harness Assembly,mask,oxygen |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Gentex Corp |
| Status | ACTIVE |
| Accessory Components and Quantity | BAYONET RECEIVER FAIRING 2, BAYONET FAIRING 2, BAYONET FAIING CONE 1, SCREW 3, FLAT LOCK WASHER 3, EXTERNAL RETAINING RING 1 |
| 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 |
|---|---|
| 01A11293-1 PRIMARY | Gentex Corp (USA) |
| A12024-1 | Transaero, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A12024-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4240-01-503-6901 is a Harness Assembly,mask,oxygen, manufactured by Gentex Corp, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-503-6901 has 2 manufacturer part numbers on file: 01A11293-1 (Gentex Corp), A12024-1 (Transaero, Inc.).
Key specifications for 01A11293-1: Accessory Components and Quantity: BAYONET RECEIVER FAIRING 2, BAYONET FAIRING 2, BAYONET FAIING CONE 1, SCREW 3, FLAT LOCK WASHER 3, EXTERNAL RETAINING RING 1; Part Name Assigned by Controlling Agency: MASK BAYONET/RECEIVER AIRCREW SYSTEM CHANGE KIT.. 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.