The Valve,check, cataloged under National Stock Number 4820-01-577-5058, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Connector Specialists Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-577-5058 |
| Primary Part Number | 003393001 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Connector Specialists Inc |
| 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 |
|---|---|
| 003393001 PRIMARY | Connector Specialists Inc (USA) |
| Reference | Meaning |
|---|---|
| 136358 | 5/9 Secondary reference Connector Specialists Inc |
NSN 4820-01-577-5058 is a Valve,check, manufactured by Connector Specialists Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-577-5058 has 1 manufacturer part number on file: 003393001 (Connector Specialists Inc).
Key specifications for 003393001: End Item Identification: 2320-01-437-6957 ASV. 0 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.