The Stem,valve, cataloged under National Stock Number 4820-00-678-4341, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-678-4341 |
| Primary Part Number | 101B284AN1 |
| Item Name | Stem,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| 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 |
|---|---|
| 101B284ANPC1 | General Electric Company (USA) |
| 101B284AN1 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| PL101284ANPC1 | General Electric Company (USA) |
| 101B284AN1 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 7027E56AB-A PIECE 3 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 101B284AN1 | 3/9 Design control — primary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 101B284AN1 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 101B284AN1 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 101B284AN-1 | 5/9 Secondary reference U.S. Government activity |
| B3284667REVAPC1 | 5/2 Secondary reference U.S. Government activity |
| 7027E66AY PIECE 68 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
NSN 4820-00-678-4341 is a Stem,valve, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-678-4341 has 4 manufacturer part numbers on file: 101B284ANPC1 (General Electric Company), 101B284AN1 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), PL101284ANPC1 (General Electric Company), 101B284AN1 (General Electric Company).
Key specifications for 101B284AN1: End Item Identification: STEAM TURBINE,SHIPS PROPULSION SYSTEM. 0 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.