The Valve,ball, cataloged under National Stock Number 4820-01-440-6649, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-440-6649 |
| Primary Part Number | B-65TF12-BK-QEK |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| B-65TF12-BK-EK-ST | Swagelok Co (USA) |
| B-65TF12-BK-OEK | Dibert Valve & Fitting Co Inc (USA) |
| B-65TF12-BK-QEK PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| B-65TF12-BK-QEK | 5/9 Secondary reference Whitey Co |
| B-65TF12-BK-QEK | C/1 Advisory reference — outside the item-of-supply concept Dibert Valve & Fitting Co Inc |
| B-65TF12-QEK-U1 | C/1 Advisory reference — outside the item-of-supply concept Whitey Co |
NSN 4820-01-440-6649 is a Valve,ball, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-6649 has 3 manufacturer part numbers on file: B-65TF12-BK-EK-ST (Swagelok Co), B-65TF12-BK-OEK (Dibert Valve & Fitting Co Inc), B-65TF12-BK-QEK (Swagelok Co).
Key specifications for B-65TF12-BK-QEK: Style Designator: STRAIGHT THRU; Special Features: DIVING MATERIAL HAS BEEN IDENTIFIED AS LIFE CRITICAL; VALVE SZ 0.750 IN. IN; End Item Identification: DIVERS LIFE SUPPORT SYSTEM; Valve Operation Method: MANUAL. 2 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.