The Stem,fluid Valve, cataloged under National Stock Number 4820-01-541-6790, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-541-6790 |
| Primary Part Number | 803-5001003-X7X1-07ACP |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Surface Treatment Document and Classification | QQ-C-320 CL 2 FED SPEC SINGLE TREATMENT RESPONSE |
| Largest Outside Diameter | 0.624 INCHES NOMINAL IN |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Model Number for Which Designed | 2-WAY 1.5 INCH BALL VALVE IN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 1.500 INCHES IN |
| Surface Treatment | CHROMIUM |
| Material | NICKEL ALLOY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 803-5001003-X7X1-07ACP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 803-5001003-X7X1-07A | 3/1 Design control — primary reference Naval Sea Systems Command |
| 5001003 | D/9 Drawing number reference only Naval Sea Systems Command |
| 803-5001003-X7XX-07A | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-541-6790 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-541-6790 has 1 manufacturer part number on file: 803-5001003-X7X1-07ACP (Naval Inventory Control Point Mechanicsburg).
Key specifications for 803-5001003-X7X1-07ACP: Valve Type for Which Designed: BALL; Surface Treatment Document and Classification: QQ-C-320 CL 2 FED SPEC SINGLE TREATMENT RESPONSE; Largest Outside Diameter: 0.624 INCHES NOMINAL IN; Stem Actuating End Type: THREADED EXTERNALLY. 11 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.