The Valve,butterfly, cataloged under National Stock Number 4820-00-138-2069, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-138-2069 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Shape | ROUND ALL ENDS |
| Renewable Seat Ring Type | PRESSED-IN |
| Flange Face Design | PLAIN ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM A126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM A395 ALLOY 60-40-18 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 5.250 INCHES IN |
| Bonnet Type | PACKING RETAINING |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 7.312 INCHES ALL ENDS IN |
| Face to Face Distance | 2.150 INCHES IN |
| Material | IRON CAST UNS F12102 BODY |
| Material | STEEL COMP 316 STEM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT |
| Material | IRON CAST UNS F32800 FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 1.075 INCHES ALL ENDS 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 |
|---|---|
| R1010-12D1A | 5/9 Secondary reference U.S. Government activity |
| R1010-12AA-1A | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-138-2069 is a Valve,butterfly, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-138-2069: Flange Shape: ROUND ALL ENDS; Renewable Seat Ring Type: PRESSED-IN; Flange Face Design: PLAIN ALL ENDS; Style Designator: STRAIGHT THRU FLANGED ENDS. 19 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.