The Valve,ball, cataloged under National Stock Number 4820-01-408-7339, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is South London Valve & Fitting Company Ltd T/a Swagelok London. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-408-7339 |
| Primary Part Number | SS-63TF8RT |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | South London Valve & Fitting Company Ltd T/a Swagelok London |
| Status | ACTIVE |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 STEM |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAT |
| Material | PLASTIC TETRAFLUOROETHYLENE PACKING |
| 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 |
|---|---|
| SS-63TF8RT | South London Valve & Fitting Company Ltd T/a Swagelok London (GBR) |
| SS-63TF8RT | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 63TF8RT | 5/1 Secondary reference South London Valve & Fitting Company Ltd T/a Swagelok London |
| SS-63TF8RT | 3/9 Design control — primary reference Whitey Co |
NSN 4820-01-408-7339 is a Valve,ball, manufactured by South London Valve & Fitting Company Ltd T/a Swagelok London, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-408-7339 has 2 manufacturer part numbers on file: SS-63TF8RT (South London Valve & Fitting Company Ltd T/a Swagelok London), SS-63TF8RT (Swagelok Co).
Key specifications for SS-63TF8RT: Material: STEEL COMP 316 BODY; Material: STEEL COMP 316 STEM; Material: PLASTIC TETRAFLUOROETHYLENE SEAT; Material: PLASTIC TETRAFLUOROETHYLENE PACKING. 4 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.