The Valve,check, cataloged under National Stock Number 4820-01-530-1302, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Applied Companies. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-530-1302 |
| Primary Part Number | 70318 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Applied Companies |
| Status | ACTIVE |
| Material | COPPER ALLOY 360 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 |
|---|---|
| 70318 | Applied Companies (USA) |
| Reference | Meaning |
|---|---|
| CD3600 | 3/9 Design control — primary reference C and D Valve Mfg Co |
NSN 4820-01-530-1302 is a Valve,check, manufactured by Applied Companies, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-530-1302 has 1 manufacturer part number on file: 70318 (Applied Companies).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-713-6450. Verify interchangeability with system specifications before substitution.
Key specifications for 70318: Part Name Assigned by Controlling Agency: VALVE,UNIVERSAL SERVICE; End Item Identification: N8S-842/G; Material: COPPER ALLOY 360 BODY; Valve Operation Method: MANUAL. 2 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.