The Valve,ball, cataloged under National Stock Number 4820-01-618-4517, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4820-01-618-4517 |
| Primary Part Number | HC-43XS4 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Style Designator | DROP-IN CARTRIDGE |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 8060-G501 REV E ITEM NO. 66 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 8591-02 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| HC-43XS4 PRIMARY | Swagelok Co (USA) |
NSN 4820-01-618-4517 is a Valve,ball, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-618-4517 has 3 manufacturer part numbers on file: 8060-G501 REV E ITEM NO. 66 (Howell Laboratories Inc Dba Howell Laboratories Inc), 8591-02 (Howell Laboratories Inc Dba Howell Laboratories Inc), HC-43XS4 (Swagelok Co).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-725-0521. Verify interchangeability with system specifications before substitution.
Key specifications for HC-43XS4: Style Designator: DROP-IN CARTRIDGE; Material: COPPER ALLOY BODY; Valve Operation Method: MANUAL. 3 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.