The Guide,valve Stem, cataloged under National Stock Number 4820-01-035-6619, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-035-6619 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Style Designator | PLAIN |
| Bore Counterbore | NOT INCLUDED |
| Outside Diameter | 1.358 INCHES NOMINAL IN |
| Bore Diameter | 1.1370 INCHES NOMINAL IN |
| Material | STEEL |
| Bore Countersink | NOT INCLUDED |
| 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 |
|---|---|
| GDE108 | 5/9 Secondary reference U.S. Government activity |
| HL19625-81 | 5/9 Secondary reference U.S. Government activity |
| HL19625-81 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| HL19625-81 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| GDE108 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| GDE108 | 3/9 Design control — primary reference U.S. Government activity |
| HL19625-81 | 5/9 Secondary reference U.S. Government activity |
| GDE108 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4820-01-035-6619 is a Guide,valve Stem, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-035-6619: Style Designator: PLAIN; Overall Length: 0.478 INCHES NOMINAL IN; Bore Counterbore: NOT INCLUDED; Outside Diameter: 1.358 INCHES NOMINAL IN. 6 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.