The Valve,check, cataloged under National Stock Number 4820-00-460-6543, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is L3harris Technologies, Inc.. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-460-6543 |
| Primary Part Number | 58639-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | L3harris Technologies, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Mounting Position | HORIZONTAL |
| Mounting Facility | BRACKET(S) |
| 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 |
|---|---|
| 58639-1 PRIMARY | L3harris Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D14550REVF | 5/9 Secondary reference U.S. Government activity |
| 58639-1 | 5/9 Secondary reference U.S. Government activity |
| 58639-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-460-6543 is a Valve,check, manufactured by L3harris Technologies, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-460-6543 has 1 manufacturer part number on file: 58639-1 (L3harris Technologies, Inc.).
Key specifications for 58639-1: Flow Control Device: DISK; Mounting Position: HORIZONTAL; Mounting Facility: BRACKET(S). 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.