The Valve,ball, cataloged under National Stock Number 4820-01-340-5763, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Canadian Worcester Controls. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-340-5763 |
| Primary Part Number | 1-59-1111TT-SE |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Canadian Worcester Controls |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Media for Which Designed | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE |
| Material | BRONZE SEAT |
| Material | BRONZE BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE 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 |
|---|---|
| 1-59-1111TT-SE | Canadian Worcester Controls (CAN) |
| Reference | Meaning |
|---|---|
| 6534C461 | 7/2 Vendor item drawing reference Indal Technologies Inc |
| 6534C461-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-340-5763 is a Valve,ball, manufactured by Canadian Worcester Controls, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-340-5763 has 1 manufacturer part number on file: 1-59-1111TT-SE (Canadian Worcester Controls).
Key specifications for 1-59-1111TT-SE: Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Thread Direction: RIGHT-HAND ALL ENDS. 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.