The Tube,drinking, cataloged under National Stock Number 4240-01-286-1843, 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 Mine Safety Appliances Company. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-286-1843 |
| Primary Part Number | 304743 |
| Item Name | Tube,drinking |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Special Test Features | NHA ARE P/N 881150041-1,88115004-2,88115004-3,CAGEC 07878,CHEMICAL BIOLOGICAL MASKS,AF TYPE DESIGNATOR MCU2-P AND MCU-2A/P,NSN 4240-01-175-3443,4240-01-175-3444,4240-01-175-3445,4240-01-284-3615,4240-01-284-3616 AND 4240-01-284-3617 A |
| Criticality Code Justification | SPCL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 304743 | Mine Safety Appliances Company (USA) |
| Reference | Meaning |
|---|---|
| 839-132 | 5/9 Secondary reference Avox Systems Inc Dba Avox Systems Inc |
| 3047432 | 5/9 Secondary reference Mine Safety Appliances Co |
| 88115053 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4240-01-286-1843 is a Tube,drinking, manufactured by Mine Safety Appliances Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-286-1843 has 1 manufacturer part number on file: 304743 (Mine Safety Appliances Company).
Key specifications for 304743: Special Test Features: NHA ARE P/N 881150041-1,88115004-2,88115004-3,CAGEC 07878,CHEMICAL BIOLOGICAL MASKS,AF TYPE DESIGNATOR MCU2-P AND MCU-2A/P,NSN 4240-01-175-3443,4240-01-175-3444,4240-01-175-3445,4240-01-284-3615,4240-01-284-3616 AND 4240-01-284-3617 A; Criticality Code Justification: SPCL; Special Features: COLOR: BLACK NO 27038-37038 OF FED-STD-595,IAW 55799-006; MATL: EDPM RUBBER; SHAPE: BENT AT A 15 DEG ANGLE AFTER 1.12 IN OF LENGTH,BENT PORTION IS APPROXIMATELY 0.280 IN. PORM 0.25 IN; FLUID PASSAGE IS 0.16 IN. W IN. 2 specifications are 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.