The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-339-4503, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is King Engineering Corporation Dba King-Gage Systems. 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-339-4503 |
| Primary Part Number | K-2000-1-720 ITEM 4508-6 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | King Engineering Corporation Dba King-Gage Systems |
| Status | ACTIVE |
| Style Designator | FLAT |
| 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 |
|---|---|
| K-2000-1-720 ITEM 4508-6 PRIMARY | King Engineering Corporation Dba King-Gage Systems (USA) |
| 4508-6 | King Engineering Corporation Dba King-Gage Systems (USA) |
NSN 4820-01-339-4503 is a Diaphragm,valve,flat, manufactured by King Engineering Corporation Dba King-Gage Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-339-4503 has 2 manufacturer part numbers on file: K-2000-1-720 ITEM 4508-6 (King Engineering Corporation Dba King-Gage Systems), 4508-6 (King Engineering Corporation Dba King-Gage Systems).
2 possible matches (shared part number, not a government interchangeability claim): 3455-01-365-1658, 8040-01-564-0647. Verify interchangeability with system specifications before substitution.
Key specifications for K-2000-1-720 ITEM 4508-6: Style Designator: FLAT. 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.