The Seat,valve, cataloged under National Stock Number 4820-00-072-6971, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Siemens Energy, Inc.. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-072-6971 |
| Primary Part Number | KJ62BM |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.500 INCHES NOMINAL IN |
| Flange Diameter | 2.252 INCHES NOMINAL IN |
| Taper Minor Diameter | 1.406 INCHES NOMINAL IN |
| Style Designator | FAUCET |
| Material Document and Classification | MIL-S-861,CLASS 405 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Taper Major Diameter | 1.750 INCHES NOMINAL IN |
| Body Inside Diameter | 0.781 INCHES NOMINAL IN |
| Taper Length | 1.953 INCHES NOMINAL IN |
| Seat Radius | 0.375 INCHES NOMINAL IN |
| Under Flange Height | 0.750 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Material | COBALT COMP 6 SEAT |
| Seating Surface Shape | RADIAL |
| 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 |
|---|---|
| B55216 | Siemens Energy, Inc. (USA) |
| KJ62BM PRIMARY | Siemens Energy, Inc. (USA) |
| F-5795PIECE5 | Siemens Energy, Inc. (USA) |
NSN 4820-00-072-6971 is a Seat,valve, manufactured by Siemens Energy, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-072-6971 has 3 manufacturer part numbers on file: B55216 (Siemens Energy, Inc.), KJ62BM (Siemens Energy, Inc.), F-5795PIECE5 (Siemens Energy, Inc.).
Key specifications for KJ62BM: Flange Seat to Disk End Height: 0.500 INCHES NOMINAL IN; Flange Diameter: 2.252 INCHES NOMINAL IN; Taper Minor Diameter: 1.406 INCHES NOMINAL IN; Style Designator: FAUCET. 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.