The Disk,valve, cataloged under National Stock Number 4820-01-208-2219, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-208-2219 |
| Primary Part Number | 2CR890 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Style Designator | PLAIN |
| Inside Diameter | 1.596 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 2CR890 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 45A391-P24 | 5/9 Secondary reference C Systems Llc Dba Craig Systems Dba Eastern Technologies |
| 45A391P5 | D/9 Drawing number reference only C Systems Llc Dba Craig Systems Dba Eastern Technologies |
| 2CR890 | 5/9 Secondary reference Oshkosh Corp |
NSN 4820-01-208-2219 is a Disk,valve, manufactured by Oshkosh Defense Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-208-2219 has 1 manufacturer part number on file: 2CR890 (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-208-2224. Verify interchangeability with system specifications before substitution.
Key specifications for 2CR890: Overall Height: 0.281 INCHES NOMINAL IN; Outside Diameter: 2.500 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Style Designator: PLAIN. 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.