The Bulb Well,valve, cataloged under National Stock Number 4820-01-189-3285, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Johnson Controls, Inc Div Building Efficiency. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-189-3285 |
| Primary Part Number | WEL17A601R |
| Item Name | Bulb Well,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Johnson Controls, Inc Div Building Efficiency |
| Status | ACTIVE |
| General Characteristics Item Description | 9.438 IN. O/A LG; 0.500 IN. INTERNAL PIPE THD; 0.750 IN. EXTERNAL PIPE THD; 250 DEG F,250 PSI,MAX IN |
| 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 |
|---|---|
| WEL17A601R | Johnson Controls, Inc Div Building Efficiency (USA) |
| Reference | Meaning |
|---|---|
| 332-2830 | D/9 Drawing number reference only Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 332-2830-020 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 4820-01-189-3285 is a Bulb Well,valve, manufactured by Johnson Controls, Inc Div Building Efficiency, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-189-3285 has 1 manufacturer part number on file: WEL17A601R (Johnson Controls, Inc Div Building Efficiency).
Key specifications for WEL17A601R: General Characteristics Item Description: 9.438 IN. O/A LG; 0.500 IN. INTERNAL PIPE THD; 0.750 IN. EXTERNAL PIPE THD; 250 DEG F,250 PSI,MAX IN. 1 specification is 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.