The Proportioniong Unit, cataloged under National Stock Number 4610-01-108-1644, is classified within Federal Supply Class 4610 (Water Purification Equipment) of the Water Purification and Sewage Treatment group. The manufacturer of record is Drew Chemical Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Proportioniong Unit |
| FSC / FSG | 4610 — Water Purification Equipment (FSG 46) |
| Manufacturers | Drew Chemical Corp (CAGE 4L055) |
| Parameter | Value |
|---|---|
| NSN | 4610-01-108-1644 |
| Primary Part Number | 954017 |
| Item Name | Proportioniong Unit |
| FSC / FSG | 4610 / 46 — Water Purification Equipment |
| Manufacturer | Drew Chemical Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 954017 PRIMARY | Drew Chemical Corp (USA) |
| Reference | Meaning |
|---|---|
| 0001275 | 5/9 Secondary reference Drew Chemical Corp |
NSN 4610-01-108-1644 is a Proportioniong Unit, manufactured by Drew Chemical Corp, classified under FSC 4610, Water Purification Equipment. Status: active.
NSN 4610-01-108-1644 has 1 manufacturer part number on file: 954017 (Drew Chemical Corp).
2 possible matches (shared part number, not a government interchangeability claim): 6220-01-395-2937, 6340-01-428-3586. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). 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.