The Disk,valve, cataloged under National Stock Number 4820-01-250-1979, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tate Andale, Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-250-1979 |
| Primary Part Number | N5385 PIECE 103 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tate Andale, Llc |
| Status | ACTIVE |
| Style Designator | SOLID WEDGE |
| Taper Major Diameter | 2.527 INCHES NOMINAL IN |
| Seat Angle | 0.3 RADIANS NOMINAL |
| Taper Length | 5.500 INCHES NOMINAL IN |
| Media for Which Designed | WATER, SALT |
| Material | STEEL |
| 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 |
|---|---|
| N5385 PIECE 103 PRIMARY | Tate Andale, Llc (USA) |
| N5385-103 PRIMARY | Tate Andale, Llc (USA) |
| Reference | Meaning |
|---|---|
| N5385 | D/9 Drawing number reference only Tate Andale, Llc |
NSN 4820-01-250-1979 is a Disk,valve, manufactured by Tate Andale, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-250-1979 has 2 manufacturer part numbers on file: N5385 PIECE 103 (Tate Andale, Llc), N5385-103 (Tate Andale, Llc).
Key specifications for N5385 PIECE 103: Overall Height: 10.187 INCHES NOMINAL IN; Style Designator: SOLID WEDGE; Taper Major Diameter: 2.527 INCHES NOMINAL IN; Seat Angle: 0.3 RADIANS NOMINAL. 6 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.