The Valve,ball, cataloged under National Stock Number 4820-01-524-8137, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Teesside Fluid System Technologies Ltd. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-524-8137 |
| Primary Part Number | SS-L33VF4 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Teesside Fluid System Technologies Ltd |
| Status | ACTIVE |
| Style Designator | CROSS |
| Valve Size | 57.2 MILLIMETERS MM |
| Maximum Operating Temp | 121.0 CELSIUS SINGLE RESPONSE DEGC |
| Face to Face Distance | 53.2 MILLIMETERS MM |
| First Connection Face to Centerline Distance | 28.6 MILLIMETERS MM |
| Material | STEEL OVERALL |
| Valve Operation Method | AUTOMATIC |
| 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-L33VF4 | Teesside Fluid System Technologies Ltd (GBR) |
| LP277-SS-L33VF4 | Bae Systems Gcs International Ltd (GBR) |
| Reference | Meaning |
|---|---|
| SS-L33VF4 | 3/9 Design control — primary reference Whitey Co |
NSN 4820-01-524-8137 is a Valve,ball, manufactured by Teesside Fluid System Technologies Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-524-8137 has 2 manufacturer part numbers on file: SS-L33VF4 (Teesside Fluid System Technologies Ltd), LP277-SS-L33VF4 (Bae Systems Gcs International Ltd).
Key specifications for SS-L33VF4: Style Designator: CROSS; Valve Size: 57.2 MILLIMETERS MM; Maximum Operating Temp: 121.0 CELSIUS SINGLE RESPONSE DEGC; Special Features: OPERATING PRESSURE OF UP TO 415 BAR AT 38 DEG C; MIN. OPERATING TEMP -54 DEG C; VALVE BALL WITH ADJUSTING HANDLE FOR BI-DIRECTIONAL FLOW CONTROL; HANDLE WIDTH: 50.8 MM MM. 7 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.