The Valve,ball, cataloged under National Stock Number 4820-01-559-5923, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Conbraco Industries Inc. 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. Current acquisition status: Active.
| Item Name | Valve,ball |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Conbraco Industries Inc (CAGE 57661) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-559-5923 |
| Primary Part Number | 77-906-01 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Conbraco Industries Inc |
| Status | ACTIVE |
| Connection Style | FLARE(TUBE) ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.250 INCHES IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Face to Face Distance | 4.250 INCHES IN |
| First Connection Face to Centerline Distance | 2.120 INCHES IN |
| Material | COPPER ALLOY BODY |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAT |
| Material | IRON STEM |
| 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 |
|---|---|
| 77-906-01 PRIMARY | Conbraco Industries Inc (USA) |
NSN 4820-01-559-5923 is a Valve,ball, manufactured by Conbraco Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-559-5923 has 1 manufacturer part number on file: 77-906-01 (Conbraco Industries Inc).
Key specifications for 77-906-01: Connection Style: FLARE(TUBE) ALL ENDS; Style Designator: STRAIGHT THRU; Operating Pressure: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 1.250 INCHES IN. 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.