The Valve,globe, cataloged under National Stock Number 4820-01-233-8949, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 25 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-233-8949 |
| Primary Part Number | D50495 A49835 |
| Item Name | Valve,globe |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Flow Control Device | PLUG |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 5.500 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.562 INCHES ALL ENDS IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Operating Pressure | 6.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 30.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM POWER DRIVE LBS |
| Valve Size | 3.000 INCHES IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Specification/standard Data | 81349-MIL-V-18030 GOVERNMENT SPECIFICATION |
| Maximum Operating Temp | 425.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nondefinitive Spec/std Data | 1 TYPE AND E COMPOSITION AND 150 PSI RATING AND 3 IN. SIZE IN |
| Nominal Outside Diameter | 6.625 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 8 ALL ENDS |
| Bonnet Attachment Method | BOLTED |
| Face to Face Distance | 11.500 INCHES IN |
| Media for Which Designed | WATER, SALT SINGLE RESPONSE |
| Material | NICKEL ALLOY STEM |
| Material | COPPER ALLOY 964 BODY |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | NICKEL ALLOY SEAT |
| Valve Operation Method | AIR |
| Nominal Thickness | 0.500 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 |
| Part Number | Manufacturer |
|---|---|
| D50495 A49835 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D50495 A49835 | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| D50495 AND A498 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| MIL-V-18030 | 4/1 Identification reference U.S. Government activity |
| D50495 | D/9 Drawing number reference only Hunt Valve Company Inc Dba Union Flonetics |
NSN 4820-01-233-8949 is a Valve,globe, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-233-8949 has 1 manufacturer part number on file: D50495 A49835 (Hunt Valve Company, Inc.).
9 possible matches (shared part number, not a government interchangeability claim): 4810-01-500-0721, 4810-01-500-3200, 4810-01-521-2661. Verify interchangeability with system specifications before substitution.
Key specifications for D50495 A49835: Flow Control Device: PLUG; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 5.500 INCHES ALL ENDS IN. 25 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.