The Ball Support,valve, cataloged under National Stock Number 4820-01-021-3858, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-021-3858 |
| Primary Part Number | 935505 |
| Item Name | Ball Support,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team |
| Status | ACTIVE |
| General Characteristics Item Description | CRES; 2.585 IN. O/A LG; 1.060 IN. MAJOR DIA; ONE END HEXAGON IN SHAPE 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 |
|---|---|
| 935505 PRIMARY | Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team (USA) |
| 024-021755PC27 | Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team (USA) |
| Reference | Meaning |
|---|---|
| 024-021755 | D/9 Drawing number reference only Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 024-021755PC27 | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 935505 | 3/9 Design control — primary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
NSN 4820-01-021-3858 is a Ball Support,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-021-3858 has 2 manufacturer part numbers on file: 935505 (Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team), 024-021755PC27 (Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-217-1181. Verify interchangeability with system specifications before substitution.
Key specifications for 935505: General Characteristics Item Description: CRES; 2.585 IN. O/A LG; 1.060 IN. MAJOR DIA; ONE END HEXAGON IN SHAPE 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.