The Disk,valve, cataloged under National Stock Number 4820-00-398-9342, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Marine Diesel, Inc. Dba Marine Diesel. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-398-9342 |
| Primary Part Number | 398-9342 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Marine Diesel, Inc. Dba Marine Diesel |
| Status | ACTIVE |
| Shank Diameter | 0.625 INCHES NOMINAL IN |
| Flange Diameter | 3.750 INCHES NOMINAL IN |
| Material | COPPER 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 |
|---|---|
| 398-9342 PRIMARY | Marine Diesel, Inc. Dba Marine Diesel (USA) |
| 11163 PRIMARY | Rps-Fl, Inc. Dba Rps Inc (USA) |
| TD-2 XTG-2 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| BS1194 PC 186 AND 189 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
| BS1194 PC186-189 | 5/9 Secondary reference Marine Diesel, Inc. Dba Marine Diesel |
NSN 4820-00-398-9342 is a Disk,valve, manufactured by Marine Diesel, Inc. Dba Marine Diesel, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-398-9342 has 3 manufacturer part numbers on file: 398-9342 (Marine Diesel, Inc. Dba Marine Diesel), 11163 (Rps-Fl, Inc. Dba Rps Inc), TD-2 XTG-2 (Circor Naval Solutions Llc Dba Warren Pumps).
4 possible matches (shared part number, not a government interchangeability claim): 1650-00-716-0059, 5935-01-169-4082, 2530-01-243-3357. Verify interchangeability with system specifications before substitution.
Key specifications for 398-9342: Shank Diameter: 0.625 INCHES NOMINAL IN; Flange Diameter: 3.750 INCHES NOMINAL IN; Overall Height: 2.938 INCHES NOMINAL IN; Material: COPPER 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.