The Valve,globe, cataloged under National Stock Number 4820-00-482-8817, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. Government technical data includes 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-482-8817 |
| Primary Part Number | B4J |
| Item Name | Valve,globe |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Flow Control Device | STEM OR STEM OR DISKDISK |
| Connection Style | FLARELESS (TUBE) FIRST ENDFLARELESS (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE STEMQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Features Provided | BONNET PACKINGBONNET PACKING |
| Bonnet Type | INSIDE SCREWINSIDE SCREW |
| Thread Direction | RIGHT-HAND FIRST ENDRIGHT-HAND FIRST END |
| Nominal Thread Size | 0.437 INCHES FIRST END0.437 INCHES FIRST END IN |
| Seat Angle | 20.0 DEGREES FIRST END |
| Maximum Operating Temp | 300.0 CELSIUS SECOND RESPONSE300.0 CELSIUS SECOND RESPONSE DEGC |
| Maximum Operating Temp | 40.0 CELSIUS FIRST RESPONSE40.0 CELSIUS FIRST RESPONSE DEGC |
| Bonnet Attachment Method | THREADEDTHREADED |
| Thread Class | 3A FIRST END3A FIRST END A |
| Thread Quantity Per Inch | 20 FIRST END20 FIRST END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNF FIRST END |
| Valve Operation Method | MANUALMANUAL |
| 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 |
|---|---|
| B4J | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| B4J | 3/9 Design control — primary reference Nupro Co |
| Z-V4LR-B | 5/9 Secondary reference Woods T B Sons Co |
NSN 4820-00-482-8817 is a Valve,globe, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-482-8817 has 1 manufacturer part number on file: B4J (Swagelok Co).
Key specifications for B4J: Flow Control Device: STEM OR STEM OR DISKDISK; Connection Style: FLARELESS (TUBE) FIRST ENDFLARELESS (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END; Style Designator: STRAIGHT THRU. 21 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.