The Disk,valve, cataloged under National Stock Number 4820-00-424-2735, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Siemens Water Technologies Corp. Div Wallace & Tiernan Products. Government technical data includes 3 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. 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 | 4820-00-424-2735 |
| Primary Part Number | P11552 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Siemens Water Technologies Corp. Div Wallace & Tiernan Products |
| Status | ACTIVE |
| Outside Diameter | 0.735 INCHES NOMINAL IN |
| Style Designator | SOLID |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| P11552 PRIMARY | Siemens Water Technologies Corp. Div Wallace & Tiernan Products (USA) |
NSN 4820-00-424-2735 is a Disk,valve, manufactured by Siemens Water Technologies Corp. Div Wallace & Tiernan Products, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-424-2735 has 1 manufacturer part number on file: P11552 (Siemens Water Technologies Corp. Div Wallace & Tiernan Products).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-529-2529. Verify interchangeability with system specifications before substitution.
Key specifications for P11552: Overall Height: 0.193 INCHES NOMINAL IN; Outside Diameter: 0.735 INCHES NOMINAL IN; Style Designator: SOLID; Material: RUBBER SYNTHETIC. 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.