The Valve,ball, cataloged under National Stock Number 4820-01-317-8235, 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 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-317-8235 |
| Primary Part Number | 78-503-01 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Conbraco Industries Inc |
| Status | ACTIVE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | BRONZE BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 78-503-01 PRIMARY | Conbraco Industries Inc (USA) |
| TKG5548-1 | Fruehauf Corp Fruehauf Trailer Opns (USA) |
| Reference | Meaning |
|---|---|
| TKG5548 | D/9 Drawing number reference only Fruehauf Corp Fruehauf Trailer Opns |
| 78-503-01 | 5/9 Secondary reference Central States Industrial Supply |
NSN 4820-01-317-8235 is a Valve,ball, manufactured by Conbraco Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-317-8235 has 2 manufacturer part numbers on file: 78-503-01 (Conbraco Industries Inc), TKG5548-1 (Fruehauf Corp Fruehauf Trailer Opns).
Key specifications for 78-503-01: Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Thread Direction: RIGHT-HAND ALL ENDS. 12 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.