The Disk,valve, cataloged under National Stock Number 4820-00-248-0796, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is B & G Equipment Company. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-248-0796 |
| Primary Part Number | SS158 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | B & G Equipment Company |
| Status | ACTIVE |
| Outside Diameter | 0.418 INCHES NOMINAL IN |
| Style Designator | PLUG |
| Nominal Thread Size | 0.112 INCHES IN |
| Seat Radius | 0.140 INCHES NOMINAL IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | COPPER ALLOY |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| SS158 PRIMARY | B & G Equipment Company (USA) |
| Reference | Meaning |
|---|---|
| 158 | 5/9 Secondary reference B & G Equipment Company |
NSN 4820-00-248-0796 is a Disk,valve, manufactured by B & G Equipment Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-248-0796 has 1 manufacturer part number on file: SS158 (B & G Equipment Company).
Key specifications for SS158: Overall Height: 0.525 INCHES NOMINAL IN; Outside Diameter: 0.418 INCHES NOMINAL IN; Style Designator: PLUG; Nominal Thread Size: 0.112 INCHES IN. 8 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.