The Valve,angle, cataloged under National Stock Number 4820-01-200-4184, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-200-4184 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Bolt Circle Nominal Diameter | 10.500 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 15.250 INCHES FIRST END IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Bolt Hole Nominal Diameter | 1.125 INCHES ALL ENDS IN |
| Operating Pressure | 625.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 5.000 INCHES IN |
| Bonnet Type | INSIDE SCREW |
| Maximum Operating Temp | 500.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Second Connection Face to Centerline Distance | 14.000 INCHES IN |
| Nominal Outside Diameter | 13.000 INCHES SECOND END IN |
| Nominal Outside Diameter | 17.500 INCHES FIRST END IN |
| Bolt Hole Quantity | 8 SECOND END |
| Bolt Hole Quantity | 16 FIRST END |
| Bonnet Attachment Method | BOLTED |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| First Connection Face to Centerline Distance | 14.000 INCHES IN |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Raised Face Nominal Diameter | 12.750 INCHES FIRST END IN |
| Raised Face Nominal Diameter | 7.312 INCHES SECOND END IN |
| Valve Operation Method | MANUAL |
| Raised Face Nominal Height | 0.062 INCHES FIRST END IN |
| Raised Face Nominal Height | 0.250 INCHES SECOND END IN |
| Nominal Thickness | 2.125 INCHES SECOND END IN |
| Nominal Thickness | 1.875 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| S-587 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-200-4184 is a Valve,angle, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-200-4185. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-200-4184: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Bolt Circle Nominal Diameter: 10.500 INCHES SECOND END IN. 29 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.