The Tube Kit,smoke Ventilation, cataloged under National Stock Number 6640-01-458-3706, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Mine Safety Appliances Company. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6640-01-458-3706 |
| Primary Part Number | 458481 |
| Item Name | Tube Kit,smoke Ventilation |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 458481 PRIMARY | Mine Safety Appliances Company (USA) |
| Reference | Meaning |
|---|---|
| 98-0342 | 5/1 Secondary reference U.S. Government activity |
NSN 6640-01-458-3706 is a Tube Kit,smoke Ventilation, manufactured by Mine Safety Appliances Company, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-458-3706 has 1 manufacturer part number on file: 458481 (Mine Safety Appliances Company).
Key specifications for 458481: Special Features: VENTILATION SMOKE TUBE KIT; C/O ASPIRATOR BULB, 2-RUBBER PLUGS AND 6-SMOKE PRODUCING TUBES CONTAINED IN PLASTIC CARRYING CASE; FOR USE WHERE CONTROLLED GENERATION OF VISIBLE SMOKE IS DESIRED IN ORDER TO DETERMINE VELOCITY, DIRECTION AND FLOW PATTERNS OF SLOW-MOVING CURRENTS IN SHAFTS, MINES AND TUNNELS; UNIT ISSUE EA; Part Name Assigned by Controlling Agency: TUBE KIT SMOKE VENTILATION; End Item Identification: KC-46 TANKER. 0 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.