The Valve,ball, cataloged under National Stock Number 4820-01-688-9634, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-688-9634 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Valve Size | 4.000 INCHES IN |
| Maximum Operating Temp | 302.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| 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 |
| Reference | Meaning |
|---|---|
| KTM SERIES NB/NM THREE-WAY BALL | 5/9 Secondary reference Emerson Process Management Valve Automation, Inc. |
| NB3132L-32ET-15L/4.0 | 3/9 Design control — primary reference Emerson Process Management Valve Automation, Inc. |
NSN 4820-01-688-9634 is a Valve,ball, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-688-9634: Valve Size: 4.000 INCHES IN; Maximum Operating Temp: 302.0 FAHRENHEIT SINGLE RESPONSE DEGF; Part Name Assigned by Controlling Agency: THREE-WAY BALL VALVE; Material: PLASTIC POLYTETRAFLUOROETHYLENE SEAT. 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.