The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-432-0193, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-432-0193 |
| Primary Part Number | M-4BMG-TN3 |
| Item Name | Valve,calibrated Flow |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Flow Control Device | NEEDLE |
| Second End Relationship with First End | IDENTICAL |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Style Designator | BEVELED |
| Material Document and Classification | FED STD 66, AISI 405/SAE 51405 FED STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| End Connection Quantity | 2 |
| First End Connection Type | BUTT WELD TUBE |
| First End Outside Diameter Tube Accommodated | 0.250 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Material | STEEL COMP 405 FLOW CONTROL DEVICE |
| Maximum Inlet Pressure Rating | ERR-060 |
| 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 |
|---|---|
| M-4BMG-TN3 PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| M-4BMG-TN3 | 5/9 Secondary reference Nupro Co |
NSN 4820-01-432-0193 is a Valve,calibrated Flow, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-432-0193 has 1 manufacturer part number on file: M-4BMG-TN3 (Swagelok Co).
Key specifications for M-4BMG-TN3: Flow Control Device: NEEDLE; Second End Relationship with First End: IDENTICAL; Regulation Type: MANUAL SINGLE STAGE; First End Style Designator: BEVELED. 11 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.