The Valve,globe, cataloged under National Stock Number 4820-01-307-3591, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bonney Forge Valve. Government technical data includes 20 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-307-3591 |
| Primary Part Number | F81D-3/4 |
| Item Name | Valve,globe |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bonney Forge Valve |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 0.750 INCHES ALL ENDS IN |
| Connection Style | SOCKET ALL ENDS |
| Supplementary Features | THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 86520 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984 |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM A582 GRADE 416 (250 BHN) ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM A582 GRADE 420 (500 BHN) ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Operating Pressure | 800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Maximum Operating Temp | 850.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Bonnet Attachment Method | BOLTED |
| Media for Which Designed | STEAM SECOND RESPONSE |
| Media for Which Designed | OIL, HYDRAULIC FIRST RESPONSE |
| Material | STEEL COMP 416 STEM |
| Material | STEEL UNS K03504 BODY |
| Material | COBALT ALLOY SEAT |
| Material | STEEL COMP 420 FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| F81D-3/4 PRIMARY | Bonney Forge Valve (USA) |
| Reference | Meaning |
|---|---|
| TA-20626-F-81-3/4IN. | 5/9 Secondary reference U.S. Government activity |
| TA-20626 | D/9 Drawing number reference only U.S. Government activity |
| F-81-3/4IN. | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-307-3591 is a Valve,globe, manufactured by Bonney Forge Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-307-3591 has 1 manufacturer part number on file: F81D-3/4 (Bonney Forge Valve).
Key specifications for F81D-3/4: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 0.750 INCHES ALL ENDS IN; Connection Style: SOCKET ALL ENDS; Supplementary Features: THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 86520 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984. 20 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.