The Seat,valve, cataloged under National Stock Number 4820-00-336-5575, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Calgon Carbon Uv Technologies Llc Dba Hyde Marine. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-336-5575 |
| Primary Part Number | 12400-101 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Calgon Carbon Uv Technologies Llc Dba Hyde Marine |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.563 INCHES NOMINAL IN |
| Flange Diameter | 2.000 INCHES NOMINAL IN |
| Thread Length | 0.844 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | THREADED FLANGED |
| Material Document and Classification | MIL-S-890,ALLOY NO 2 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Body Inside Diameter | 0.875 INCHES NOMINAL IN |
| Nominal Thread Size | 1.000 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 0.875 INCHES NOMINAL IN |
| Thread Class | 4A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 11-1/2 SINGLE THREADED PORTION |
| Material | STEEL BODY |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 12400-101 | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| 13117PC69 | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| 13534PC251 | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| 12597PC102 | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| 12758PC102 | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| 69-13117 | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| Reference | Meaning |
|---|---|
| 297683PC102 | 5/2 Secondary reference U.S. Government activity |
| 252675PC101 | 5/2 Secondary reference U.S. Government activity |
| 566372PC251 | 3/2 Design control — primary reference U.S. Government activity |
| 271882PC102 | 5/2 Secondary reference U.S. Government activity |
| 402182PC69 | 5/2 Secondary reference U.S. Government activity |
| 4599000 | 5/9 Secondary reference Calgon Carbon Uv Technologies Llc Dba Hyde Marine |
| 26-1X26-18PC136 | 5/9 Secondary reference Calgon Carbon Uv Technologies Llc Dba Hyde Marine |
| 26-36X26-18PC136 | 5/9 Secondary reference Calgon Carbon Uv Technologies Llc Dba Hyde Marine |
| 21-159X26-10PC121 | 5/9 Secondary reference Calgon Carbon Uv Technologies Llc Dba Hyde Marine |
NSN 4820-00-336-5575 is a Seat,valve, manufactured by Calgon Carbon Uv Technologies Llc Dba Hyde Marine, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-336-5575 has 6 manufacturer part numbers on file: 12400-101 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), 13117PC69 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), 13534PC251 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), 12597PC102 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), 12758PC102 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine) and 1 more.
Key specifications for 12400-101: Flange Seat to Disk End Height: 0.563 INCHES NOMINAL IN; Flange Diameter: 2.000 INCHES NOMINAL IN; Thread Length: 0.844 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED. 13 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.