The Valve,ball, cataloged under National Stock Number 4820-01-643-2121, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rockwell Automation Inc Dba Rockwell Automation. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,ball |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Rockwell Automation Inc Dba Rockwell Automation (CAGE 4H047) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-643-2121 |
| Primary Part Number | 3/8 54576 DNH1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rockwell Automation Inc Dba Rockwell Automation |
| 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 |
|---|---|
| M-10G470-A0 ITEM 129 | Rockwell Automation Inc Dba Rockwell Automation (USA) |
| 3/8 54576 DNH1 PRIMARY | Rockwell Automation Inc Dba Rockwell Automation (USA) |
| Reference | Meaning |
|---|---|
| M-10G470-A0 | D/9 Drawing number reference only Rockwell Automation Inc Dba Rockwell Automation |
NSN 4820-01-643-2121 is a Valve,ball, manufactured by Rockwell Automation Inc Dba Rockwell Automation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-643-2121 has 2 manufacturer part numbers on file: M-10G470-A0 ITEM 129 (Rockwell Automation Inc Dba Rockwell Automation), 3/8 54576 DNH1 (Rockwell Automation Inc Dba Rockwell Automation).
8 possible matches (shared part number, not a government interchangeability claim): 5998-01-643-2131, 4720-01-707-3184, 4720-01-707-3487. Verify interchangeability with system specifications before substitution.
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.