The Valve,ball, cataloged under National Stock Number 4820-01-145-6679, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-145-6679 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 1.500 INCHES ALL ENDS IN |
| Connection Style | STREAMLINED WITH ONE BRAZING RING ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM THIRD RESPONSE LBS |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FOURTH RESPONSE LBS |
| Bonnet Type | PACKING RETAINING |
| Maximum Operating Temp | 180.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Maximum Operating Temp | 180.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 180.0 FAHRENHEIT FOURTH RESPONSE DEGF |
| Maximum Operating Temp | 180.0 FAHRENHEIT THIRD RESPONSE DEGF |
| Media for Which Designed | HELIUM SECOND RESPONSE |
| Media for Which Designed | AIR FIRST RESPONSE |
| Media for Which Designed | NITROGEN, GASEOUS FOURTH RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID, MINERAL BASE THIRD RESPONSE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING 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 |
| Reference | Meaning |
|---|---|
| SS845-2050945 | D/9 Drawing number reference only U.S. Government activity |
| 2640-402X1 ASSYG | 3/2 Design control — primary reference U.S. Government activity |
| 2640-402X1 | D/9 Drawing number reference only U.S. Government activity |
| SS845-2050945ASSYG | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-145-6679 is a Valve,ball, classified under FSC 4820, Valves, Nonpowered. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-156-5699, 4820-01-215-2146, 4820-01-215-2151. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-145-6679: Nominal Pipe Size Accommodated: 1.500 INCHES ALL ENDS IN; Connection Style: STREAMLINED WITH ONE BRAZING RING ALL ENDS; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 20 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.