The Disk,valve, cataloged under National Stock Number 4820-01-113-0881, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-113-0881 |
| Primary Part Number | 8-0-51-03-Q |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Core Industries Inc. Dba Mueller Steam Specialty |
| Status | ACTIVE |
| Outside Diameter | 8.580 INCHES NOMINAL IN |
| Style Designator | SOLID |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| CN-2.0/12.0-51/52-7 ITEM 3 8IN | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
| 8-0-51-03-Q PRIMARY | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
| Reference | Meaning |
|---|---|
| 8-0-51-03-C | C/1 Advisory reference — outside the item-of-supply concept Core Industries Inc. Dba Mueller Steam Specialty |
| CN-2.0/12.0-51/52-7 | D/9 Drawing number reference only Core Industries Inc. Dba Mueller Steam Specialty |
NSN 4820-01-113-0881 is a Disk,valve, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-113-0881 has 2 manufacturer part numbers on file: CN-2.0/12.0-51/52-7 ITEM 3 8IN (Core Industries Inc. Dba Mueller Steam Specialty), 8-0-51-03-Q (Core Industries Inc. Dba Mueller Steam Specialty).
Key specifications for 8-0-51-03-Q: Overall Height: 1.795 INCHES NOMINAL IN; Outside Diameter: 8.580 INCHES NOMINAL IN; Style Designator: SOLID; Material: NICKEL ALLOY. 3 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.