The Disk,valve, cataloged under National Stock Number 4820-01-324-2185, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Crane Co Div Valve Div. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-324-2185 |
| Primary Part Number | 32813 145 1/2U PC 4A 4.00IN |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Crane Co Div Valve Div |
| Status | ACTIVE |
| Outside Diameter | 3.938 INCHES MINIMUM AND 3.943 INCHES MAXIMUM IN |
| Style Designator | PLUG |
| Thread Pitch Diameters | +1.5390 TO 1.6320 INCHES IN |
| Seat Angle | 15.0 DEGREES NOMINAL |
| Nominal Thread Size | 1.625 INCHES IN |
| Media for Which Designed | WATER OR OIL OR GAS |
| Thread Quantity Per Inch | 11-1/2 |
| Material | STEEL |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| 32813 145 1/2U PC 4A 4.00IN PRIMARY | Crane Co Div Valve Div (USA) |
| Reference | Meaning |
|---|---|
| 32813 | D/9 Drawing number reference only Crane Co Div Valve Div |
NSN 4820-01-324-2185 is a Disk,valve, manufactured by Crane Co Div Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-324-2185 has 1 manufacturer part number on file: 32813 145 1/2U PC 4A 4.00IN (Crane Co Div Valve Div).
Key specifications for 32813 145 1/2U PC 4A 4.00IN: Overall Height: 5.438 INCHES NOMINAL IN; Outside Diameter: 3.938 INCHES MINIMUM AND 3.943 INCHES MAXIMUM IN; Style Designator: PLUG; Thread Pitch Diameters: +1.5390 TO 1.6320 INCHES IN. 9 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.