The Valve,plug, cataloged under National Stock Number 4820-01-139-9831, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dixon Valve & Coupling Company, Llc Div Dixon Fire. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-139-9831 |
| Primary Part Number | V-44 3/4IN |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dixon Valve & Coupling Company, Llc Div Dixon Fire |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Flow Style | TWO-WAY TWO PORT 90 DEGREE PLUG TURN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Material | IRON CAST OVERALL |
| 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 |
|---|---|
| V-44 3/4IN PRIMARY | Dixon Valve & Coupling Company, Llc Div Dixon Fire (USA) |
| Reference | Meaning |
|---|---|
| 2180 3-4 | C/1 Advisory reference — outside the item-of-supply concept Crane Co Div Valve Div |
| 2D4-1160 | 5/9 Secondary reference Ingersoll Rand Co |
| V44 | 5/9 Secondary reference Ingersoll Rand Co |
NSN 4820-01-139-9831 is a Valve,plug, manufactured by Dixon Valve & Coupling Company, Llc Div Dixon Fire, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-139-9831 has 1 manufacturer part number on file: V-44 3/4IN (Dixon Valve & Coupling Company, Llc Div Dixon Fire).
1 possible match (shared part number, not a government interchangeability claim): 5996-01-325-9898. Verify interchangeability with system specifications before substitution.
Key specifications for V-44 3/4IN: Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Flow Style: TWO-WAY TWO PORT 90 DEGREE PLUG TURN; Thread Direction: RIGHT-HAND ALL ENDS. 8 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.