The Adapter,drink Tube, cataloged under National Stock Number 4240-01-546-4517, 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 Tsi Incorporated. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Adapter,drink Tube |
| FSC / FSG | 4240 — Safety and Rescue Equipment (FSG 42) |
| Manufacturers | Tsi Incorporated (CAGE 24575) |
| Parameter | Value |
|---|---|
| NSN | 4240-01-546-4517 |
| Primary Part Number | 800570 |
| Item Name | Adapter,drink Tube |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Tsi Incorporated |
| Status | ACTIVE |
| 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 |
|---|---|
| 800570 PRIMARY | Tsi Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 5-1-4144 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4240-01-546-4517 is a Adapter,drink Tube, manufactured by Tsi Incorporated, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-546-4517 has 1 manufacturer part number on file: 800570 (Tsi Incorporated).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-563-3476. Verify interchangeability with system specifications before substitution.
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.