The Disk,valve, cataloged under National Stock Number 4810-00-573-4527, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4810-00-573-4527 |
| Item Name | Disk,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| Nominal Thread Size | 0.500 INCHES IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | COPPER ALLOY |
| Thread Series Designator | UNEF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 311444 | 3/9 Design control — primary reference Honeywell International, Inc Dba Honeywell International Div Honeywell Energy Solutions Group |
NSN 4810-00-573-4527 is a Disk,valve, classified under FSC 4810, Valves, Powered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2835-00-943-7861. Verify interchangeability with system specifications before substitution.
Key specifications for 4810-00-573-4527: Nominal Thread Size: 0.500 INCHES IN; Special Features: FLAT SEATING SURFACE,MAJOR OD 1.125 IN.,O/A LG 1.850 IN.,TAERED BOTTOM GUIDE IN; Thread Class: 2B; Thread Quantity Per Inch: 28. 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.