The Ring,valve Piston, cataloged under National Stock Number 4820-01-195-7435, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Zurn Industries Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-195-7435 |
| Primary Part Number | DR-10004-1 |
| Item Name | Ring,valve Piston |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Zurn Industries Inc |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL,PER MIL MIL-S-869C,CLASS C |
| 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 |
|---|---|
| FR-10009 PIECE 32 | Zurn Industries Inc (USA) |
| DR-10004-1 PRIMARY | Zurn Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| FR-10009 | D/9 Drawing number reference only Zurn Industries Inc |
NSN 4820-01-195-7435 is a Ring,valve Piston, manufactured by Zurn Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-195-7435 has 2 manufacturer part numbers on file: FR-10009 PIECE 32 (Zurn Industries Inc), DR-10004-1 (Zurn Industries Inc).
Key specifications for DR-10004-1: General Characteristics Item Description: MATERIAL STEEL,PER MIL MIL-S-869C,CLASS C. 1 specification is 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.