The Disk,valve, cataloged under National Stock Number 4820-01-231-4166, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-231-4166 |
| Primary Part Number | 32813-143 1/2U PIECE 4A-3IN |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Crane Co Div Valve Div |
| Status | ACTIVE |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 500.0 FAHRENHEIT NOMINAL DEGF |
| Outside Diameter | 2.943 INCHES MINIMUM AND 2.948 INCHES MAXIMUM IN |
| Style Designator | PLUG |
| Seat Angle | 15.0 DEGREES NOMINAL |
| Nominal Thread Size | 3.000 INCHES IN |
| Media for Which Designed | STEAM |
| Material | STEEL |
| Thread Series Designator | NPT |
| 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 |
|---|---|
| A-43461-A NO.4U | Crane Co Div Valve Div (USA) |
| 32813-143 1/2U PIECE 4A-3IN PRIMARY | Crane Co Div Valve Div (USA) |
| Reference | Meaning |
|---|---|
| A-43461-A | D/9 Drawing number reference only Crane Co Div Valve Div |
| B-104912 | D/9 Drawing number reference only Crane Co Div Valve Div |
| 32813 | D/9 Drawing number reference only Crane Co Div Valve Div |
NSN 4820-01-231-4166 is a Disk,valve, manufactured by Crane Co Div Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-231-4166 has 2 manufacturer part numbers on file: A-43461-A NO.4U (Crane Co Div Valve Div), 32813-143 1/2U PIECE 4A-3IN (Crane Co Div Valve Div).
Key specifications for 32813-143 1/2U PIECE 4A-3IN: Overall Height: 4.500 INCHES NOMINAL IN; Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF; Outside Diameter: 2.943 INCHES MINIMUM AND 2.948 INCHES MAXIMUM 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.