The Disk,valve, cataloged under National Stock Number 4820-00-112-7264, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. Government technical data includes 10 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.
| Parameter | Value |
|---|---|
| NSN | 4820-00-112-7264 |
| Primary Part Number | E12561-99 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Shank Diameter | 0.245 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 3.356 INCHES NOMINAL IN |
| Outside Diameter | 0.688 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Nominal Thread Size | 0.250 INCHES IN |
| Under Flange Height | 0.125 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | COPPER ALLOY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| E12561-99 PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
NSN 4820-00-112-7264 is a Disk,valve, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-112-7264 has 1 manufacturer part number on file: E12561-99 (Timken Gears & Services Inc. Div Philadelphia Gear).
Key specifications for E12561-99: Shank Diameter: 0.245 INCHES NOMINAL IN; Flange Seat to Disk End Height: 3.356 INCHES NOMINAL IN; Overall Height: 3.552 INCHES NOMINAL IN; Outside Diameter: 0.688 INCHES NOMINAL IN. 10 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.