The Disk,valve, cataloged under National Stock Number 4820-00-535-2177, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-535-2177 |
| Primary Part Number | A10263-001-103 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Outside Diameter | 4.885 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-766, CLASS 304, COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| A10263-001-103 PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| C12648PC6 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| C12648PC6 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A10263-001-148 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A10263-001-103 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 4820-00-535-2177 is a Disk,valve, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-535-2177 has 2 manufacturer part numbers on file: A10263-001-103 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), C12648PC6 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for A10263-001-103: Overall Height: 1.075 INCHES NOMINAL IN; Outside Diameter: 4.885 INCHES NOMINAL IN; Material Document and Classification: QQ-S-766, CLASS 304, COND A FED SPEC SINGLE MATERIAL RESPONSE; Material: STEEL COMP 304. 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.