The Stem,fluid Valve, cataloged under National Stock Number 4820-01-307-8916, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aalberts Integrated Piping Systems Americas, Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-307-8916 |
| Primary Part Number | W-1798-00 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aalberts Integrated Piping Systems Americas, Inc. |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 DISK AND 1 GUIDE AND 1 RETAINER |
| Valve Type for Which Designed | Y |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Model Number for Which Designed | F212U5A |
| Valve Size for Which Designed | 1.500 INCHES IN |
| Material | STEEL COMP 302 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| W-1798-00 PRIMARY | Aalberts Integrated Piping Systems Americas, Inc. (USA) |
| Reference | Meaning |
|---|---|
| G011906 | 5/9 Secondary reference U.S. Government activity |
| D27357 ITEM 8 | 5/9 Secondary reference U.S. Government activity |
| W047700 | 5/9 Secondary reference U.S. Government activity |
| D27357 | D/9 Drawing number reference only U.S. Government activity |
| W-1248-05 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-307-8916 is a Stem,fluid Valve, manufactured by Aalberts Integrated Piping Systems Americas, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-307-8916 has 1 manufacturer part number on file: W-1798-00 (Aalberts Integrated Piping Systems Americas, Inc.).
Key specifications for W-1798-00: Furnished Items and Quantity: 1 DISK AND 1 GUIDE AND 1 RETAINER; Valve Type for Which Designed: Y; Stem Actuating End Type: THREADED EXTERNALLY; Valve Model Number for Which Designed: F212U5A. 6 specifications are documented in the U.S. Government catalog.
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.