The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-191-8295, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-191-8295 |
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST END |
| Style Designator | STRAIGHT THRU |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Bonnet Attachment Method | THREADED |
| Thread Series Designator | NPT FIRST END |
| 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 |
| Reference | Meaning |
|---|---|
| B0100-00-B5237- | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| E-97172 | D/9 Drawing number reference only Blaw Knox Corp Blaw-Knox Equipment Div |
| B0100-00-B5237- | 5/9 Secondary reference U.S. Government activity |
| D0A-BSN7-1A000000A | 3/2 Design control — primary reference U.S. Government activity |
| 100P4ANDDM8-5ANDM70 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-191-8295 is a Valve,diaphragm,stop, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-191-8295: Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST END; Style Designator: STRAIGHT THRU; Bonnet Type: INSIDE SCREW; Thread Direction: RIGHT-HAND FIRST END. 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.