The Disk,valve, cataloged under National Stock Number 4820-00-191-6843, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Striegel Supply, Inc. Dba Striegel Supply Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-191-6843 |
| Primary Part Number | 4122805 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Striegel Supply, Inc. Dba Striegel Supply Inc |
| Status | ACTIVE |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Inside Diameter | 1.100 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| Material | RUBBER |
| 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 |
|---|---|
| 4122805 PRIMARY | Striegel Supply, Inc. Dba Striegel Supply Inc (USA) |
| 4L2805 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 4122805 | C/1 Advisory reference — outside the item-of-supply concept Schoonmaker Service Parts Co Inc |
NSN 4820-00-191-6843 is a Disk,valve, manufactured by Striegel Supply, Inc. Dba Striegel Supply Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-191-6843 has 2 manufacturer part numbers on file: 4122805 (Striegel Supply, Inc. Dba Striegel Supply Inc), 4L2805 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4122805: Overall Height: 3.500 INCHES NOMINAL IN; Outside Diameter: 2.000 INCHES NOMINAL IN; Style Designator: PLAIN; Inside Diameter: 1.100 INCHES NOMINAL IN. 5 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.