The Valve,globe, cataloged under National Stock Number 4820-01-003-6657, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-003-6657 |
| Primary Part Number | 4251F2Y |
| Item Name | Valve,globe |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE SEAT |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.125 INCHES ALL ENDS IN |
| Maximum Operating Temp | -320.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 1200.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Bonnet Attachment Method | UNION |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 SEAT |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE |
| Material | STEEL COMP 316 STEM |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 4251F2Y PRIMARY | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
NSN 4820-01-003-6657 is a Valve,globe, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-003-6657 has 1 manufacturer part number on file: 4251F2Y (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).
Key specifications for 4251F2Y: Flow Control Device: DISK; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 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.