The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-679-7590, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Price Engineering Company, Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-679-7590 |
| Primary Part Number | CSAZ-XXN |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Price Engineering Company, Llc |
| Status | ACTIVE |
| Material | STEEL BODY |
| 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 |
|---|---|
| CSAZ-XXN PRIMARY | Price Engineering Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4457659 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 4820-01-679-7590 is a Valve,regulating,fluid Pressure, manufactured by Price Engineering Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-679-7590 has 1 manufacturer part number on file: CSAZ-XXN (Price Engineering Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-728-6091. Verify interchangeability with system specifications before substitution.
Key specifications for CSAZ-XXN: Overall Length: 2.520 INCHES NOMINAL IN; Overall Width: 0.850 INCHES NOMINAL IN; Special Features: FURNISHED ITEMS, 2EA 4459990 RING, 1EA 1KK548 RING, 1EA 4459989 RING, 1E 4459988 ORING, 1EA 1KK547 ORING, 1EA 4459987 ORING; Part Name Assigned by Controlling Agency: VALVE. 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.