The Valve,ball, cataloged under National Stock Number 4820-01-483-8170, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 18 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 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 | 4820-01-483-8170 |
| Primary Part Number | 803-5001003-G3B1 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Connection Style | SOCKET ALL ENDS |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | AISI 1018 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | ASTM A181 CLASS 70 FED SPEC SINGLE MATERIAL RESPONSE BODY LINING |
| Material Document and Classification | ASTM D4894 TYPEII, TYPE IV GRADE1, OR TYPE IVGRADE 2 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | B271 ALLOY C92200. ASTM B505 ALLOY C92200 OR ASTM B584 ALLOY C92200 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-4-281 CL A COLD DRAWN FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Operating Pressure | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Material | BRONZE BODY |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | NICKEL STEM |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Material | COPPER BODY LINING |
| 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 |
|---|---|
| 803-5001003-G3B1 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4820-01-483-8170 is a Valve,ball, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-483-8170 has 1 manufacturer part number on file: 803-5001003-G3B1 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-645-9456. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5001003-G3B1: Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Connection Style: SOCKET ALL ENDS; Connection Type: BUTT WELD PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 18 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.