The Cock,shutoff,screw Stem, cataloged under National Stock Number 4820-01-166-2149, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Amz Alabama Inc.. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Cock,shutoff,screw Stem |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Bae Systems Hagglunds Aktiebolag (CAGE AC90N); Amz Alabama Inc. (CAGE 076M6) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-166-2149 |
| Primary Part Number | 92633-991 |
| Item Name | Cock,shutoff,screw Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Amz Alabama Inc. |
| 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 |
|---|---|
| 20248-618 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 4536355-801 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 92633-991 PRIMARY | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 92633-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 4536355-801 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
NSN 4820-01-166-2149 is a Cock,shutoff,screw Stem, manufactured by Amz Alabama Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-166-2149 has 3 manufacturer part numbers on file: 20248-618 (Bae Systems Hagglunds Aktiebolag), 4536355-801 (Bae Systems Hagglunds Aktiebolag), 92633-991 (Amz Alabama Inc.).
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.