The Guide,valve Stem, cataloged under National Stock Number 4820-01-348-5666, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-348-5666 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Shoulder Second Fillet Radius | 0.015 INCHES NOMINAL IN |
| Major Diameter Length | 0.080 INCHES NOMINAL IN |
| Bb End Shank Diameter | 0.220 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763, CLASS 321, COND A FED SPEC 1ST MATERIAL RESPONSE |
| Outside Diameter | 1.055 INCHES NOMINAL IN |
| Length From Aa End to Largest Diameter Face | 0.290 INCHES NOMINAL IN |
| Aa End Diameter | 0.358 INCHES NOMINAL IN |
| Material | STEEL COMP 321 |
| Shoulder First Fillet Radius | 0.010 INCHES NOMINAL IN |
| 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 |
|---|---|
| 3169992-2 | 3/2 Design control — primary reference U.S. Government activity |
| 3214755 | D/9 Drawing number reference only Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 3169992-1 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 3169992 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 3169992 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-348-5666 is a Guide,valve Stem, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-348-5666: Shoulder Second Fillet Radius: 0.015 INCHES NOMINAL IN; Major Diameter Length: 0.080 INCHES NOMINAL IN; Bb End Shank Diameter: 0.220 INCHES NOMINAL IN; Material Document and Classification: QQ-S-763, CLASS 321, COND A FED SPEC 1ST MATERIAL RESPONSE. 9 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.