The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-019-4658, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Carrier Corp. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-019-4658 |
| Primary Part Number | 16N14-783 1-2BUTTWELD |
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Carrier Corp |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Connection Style | BEVELED (PIPE) ALL ENDS |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Bonnet Type | INSIDE SCREW |
| Bonnet Attachment Method | BOLTED |
| Material | STEEL BODY |
| Material | STEEL SEAT |
| Material | RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Material | STEEL STEM |
| 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 |
|---|---|
| 16N14-783 1-2BUTTWELD PRIMARY | Carrier Corp (USA) |
| Reference | Meaning |
|---|---|
| 16N14-783 1-2IN | C/1 Advisory reference — outside the item-of-supply concept Carrier Corp |
| 16N4-783 1-2BUTTWELD | 5/9 Secondary reference Carrier Corp |
| 104E050421TN115 | C/1 Advisory reference — outside the item-of-supply concept Rockwell Intl Corp Flow Control Div |
| 16N14-783 1-2BU | C/1 Advisory reference — outside the item-of-supply concept Carrier Corp |
NSN 4820-01-019-4658 is a Valve,diaphragm,stop, manufactured by Carrier Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-019-4658 has 1 manufacturer part number on file: 16N14-783 1-2BUTTWELD (Carrier Corp).
Key specifications for 16N14-783 1-2BUTTWELD: Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Connection Style: BEVELED (PIPE) ALL ENDS; Connection Type: BUTT WELD PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 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.