The Stem,fluid Valve, cataloged under National Stock Number 4820-01-185-4429, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Johnson Controls Navy Systems, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-185-4429 |
| Primary Part Number | 64-19174PIECE104H |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Johnson Controls Navy Systems, Llc |
| Status | ACTIVE |
| Material | STEEL |
| 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 |
|---|---|
| 64-19174PIECE104H PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 64-19174 | D/9 Drawing number reference only Johnson Controls Navy Systems, Llc |
NSN 4820-01-185-4429 is a Stem,fluid Valve, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-185-4429 has 1 manufacturer part number on file: 64-19174PIECE104H (Johnson Controls Navy Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-185-6134. Verify interchangeability with system specifications before substitution.
Key specifications for 64-19174PIECE104H: Material: STEEL. 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.