The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-989-5446, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lincoln Electric Co the Harris Calorific Div. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-989-5446 |
| Primary Part Number | 3302227 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lincoln Electric Co the Harris Calorific Div |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT, TOP AND BOTTOM GUIDED |
| Valve Stem Design | SINGLE SEAT |
| First End Thread Direction | LEFT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 2A A |
| Body Style | STRAIGHT THRU |
| Regulation Type | 1ST STAGE AUTOMATIC, 2ND STAGE MANUAL |
| First End Style Designator | SWIVEL NUT, GAS |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 0.0 TO 60.0 CAMERA MOUNT |
| Second End Thread Direction | LEFT-HAND |
| Manual Control Method | SCREW |
| Valve Loading Method | SPRING |
| Second End Style Designator | SWIVEL NUT, FLARED |
| First End Connection Type | THREADED INTERNAL GAS CYLINDER |
| Unable to Decode | UNABLE TO DECODE |
| Material | BRASS SEAT |
| Media for Which Designed | ARGON AND NITROGEN, LIQUID |
| Maximum Inlet Pressure Rating | ERR-060 |
| Second End Connection Type | THREADED EXTERNAL BOSS |
| Furnished Items | INLET PRESSURE GAGE AND OUTLET PRESSURE GAGE |
| Thread Size and Series/type Designator | 9/16-18 UNF SECOND END |
| Thread Size and Series/type Designator | 0.965-14 NGO FIRST END |
| Filter | INCLUDED |
| 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 |
|---|---|
| 3302227 PRIMARY | Lincoln Electric Co the Harris Calorific Div (USA) |
| Reference | Meaning |
|---|---|
| 92-50-590 | 5/9 Secondary reference Lincoln Electric Co the Harris Calorific Div |
| 92-45-590 | 5/9 Secondary reference Liquid Carbonic Corp |
| 92-3U1 | 5/9 Secondary reference Liquid Carbonic Corp |
NSN 4820-00-989-5446 is a Valve,regulating,fluid Pressure, manufactured by Lincoln Electric Co the Harris Calorific Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-989-5446 has 1 manufacturer part number on file: 3302227 (Lincoln Electric Co the Harris Calorific Div).
Key specifications for 3302227: Flow Control Device: DISK, FLAT, TOP AND BOTTOM GUIDED; Valve Stem Design: SINGLE SEAT; First End Thread Direction: LEFT-HAND; Second End Relationship with First End: NOT IDENTICAL. 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.