The Spring, cataloged under National Stock Number 4820-01-477-2948, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dante Valve Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-477-2948 |
| Primary Part Number | S3408-X |
| Item Name | Spring |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dante Valve Company |
| Status | ACTIVE |
| General Characteristics Item Description | 3/4 INCH; 4INCH STAINLESS STEEL SPRING IN |
| 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 |
|---|---|
| S3408-X PRIMARY | Dante Valve Company (USA) |
| DX62-.50HT ITEM 11 | Dante Valve Company (USA) |
| Reference | Meaning |
|---|---|
| S3408-X | 3/9 Design control — primary reference Danco Valve Company |
| DX62-.50HT ITEM 11 | 5/9 Secondary reference Danco Valve Company |
| S3408-I | 5/9 Secondary reference Danco Valve Company |
NSN 4820-01-477-2948 is a Spring, manufactured by Dante Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-477-2948 has 2 manufacturer part numbers on file: S3408-X (Dante Valve Company), DX62-.50HT ITEM 11 (Dante Valve Company).
Key specifications for S3408-X: General Characteristics Item Description: 3/4 INCH; 4INCH STAINLESS STEEL SPRING IN. 1 specification is 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.