The Guide,valve Stem, cataloged under National Stock Number 4820-01-423-1958, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-423-1958 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Style Designator | PLAIN-TAPERED SHANK END |
| Outside Diameter | 0.865 INCHES NOMINAL IN |
| Taper Length | 0.406 INCHES NOMINAL IN |
| Bore Diameter | 0.5469 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| PLC-11440 ITEM 4 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| PLC-11440 | D/9 Drawing number reference only U.S. Government activity |
| PLC-11440-4/.500IPS | 5/2 Secondary reference U.S. Government activity |
| 114393CD | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-423-1958 is a Guide,valve Stem, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-423-1958: Style Designator: PLAIN-TAPERED SHANK END; Outside Diameter: 0.865 INCHES NOMINAL IN; Taper Length: 0.406 INCHES NOMINAL IN; Special Features: MATL 304 SS,PER QQ-S-763 COND A;0.500 IPS GUIDE FOR IN-LINE,NON REVERSIBLE CHECK VALVE.. 5 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.