The Valve,ball, cataloged under National Stock Number 4820-01-393-5302, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 21 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-393-5302 |
| Primary Part Number | B-44FX4 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| 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 |
|---|---|
| PAN/GA/2644/51 | Teddington Electronics Ltd (GBR) |
| B-44FX4 PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 25-31500-065 | 5/9 Secondary reference Teddington Electronics Ltd |
| 001329372 | 5/9 Secondary reference Ministry of Defence (procurement Executive) |
| PAN/GA/2644/A/51 | 5/9 Secondary reference Teddington Electronics Ltd |
| PAN/GA/2644 | 5/9 Secondary reference Teddington Controls Ltd |
| PAN/GA/2644/A | 5/9 Secondary reference Teddington Electronics Ltd |
| 001329372 ITEM 51 | 5/9 Secondary reference Ministry of Defence (procurement Executive) |
| PAN/GA/2644 ITEM 51 | 5/9 Secondary reference Teddington Controls Ltd |
| PAN/GA/2644/A/51 | 5/9 Secondary reference Teddington Controls Ltd |
| PAN/GA/2644/A | 5/9 Secondary reference Teddington Controls Ltd |
| 6097281-3 | D/9 Drawing number reference only Naval Sea Systems Command |
| 001329376 | 5/9 Secondary reference Ministry of Defence (procurement Executive) |
| PAN/GA/2644/A ITEM 51 | 5/9 Secondary reference Teddington Electronics Ltd |
| PAN/GA/2644/A ITEM 51 | 5/9 Secondary reference Teddington Controls Ltd |
| PAN/GA/2644 | 5/1 Secondary reference Teddington Electronics Ltd |
| 25-31500-065 | 5/9 Secondary reference Teddington Controls Ltd |
| PAN/GA/2644/51 | 5/9 Secondary reference Teddington Controls Ltd |
| 001329376/51 | 5/9 Secondary reference Ministry of Defence (procurement Executive) |
| 001329372/51 | 5/9 Secondary reference Ministry of Defence (procurement Executive) |
| B-44FX4 | 5/9 Secondary reference Whitey Co |
| PAN/GA/2644 ITEM 51 | 5/9 Secondary reference Teddington Electronics Ltd |
NSN 4820-01-393-5302 is a Valve,ball, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-393-5302 has 2 manufacturer part numbers on file: PAN/GA/2644/51 (Teddington Electronics Ltd), B-44FX4 (Swagelok Co).
Key specifications for B-44FX4: End Item Identification: VACUUM SERVICE;NAVAL SEA SYSTEMS COMMANDCOMMAND. 0 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.