The Valve,globe, cataloged under National Stock Number 4820-01-340-0638, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Deltrol Corp Deltrol Controls Div. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-340-0638 |
| Primary Part Number | NMF20-10S |
| Item Name | Valve,globe |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Deltrol Corp Deltrol Controls Div |
| Status | ACTIVE |
| Flow Control Device | NEEDLE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Maximum Operating Temp | 212.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Bonnet Attachment Method | THREADED |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL COMP 416 STEM |
| 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 |
|---|---|
| 2D3-1568 PIECE 51 | Lake Shore Systems, Inc. (USA) |
| NMF20-10S PRIMARY | Deltrol Corp Deltrol Controls Div (USA) |
| 2D3-1597 PIECE 52 | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| NMF20-105 | C/1 Advisory reference — outside the item-of-supply concept Deltrol Corp Deltrol Controls Div |
| 2D3-1597 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
NSN 4820-01-340-0638 is a Valve,globe, manufactured by Deltrol Corp Deltrol Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-340-0638 has 3 manufacturer part numbers on file: 2D3-1568 PIECE 51 (Lake Shore Systems, Inc.), NMF20-10S (Deltrol Corp Deltrol Controls Div), 2D3-1597 PIECE 52 (Lake Shore Systems, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-341-0778, 4730-01-341-0780. Verify interchangeability with system specifications before substitution.
Key specifications for NMF20-10S: Flow Control Device: NEEDLE; Connection Style: PLAIN,OPTIONAL END(PIPE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Connection Type: THREADED INTERNAL PIPE SECOND END. 18 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.