The Seat,valve, cataloged under National Stock Number 4820-01-293-6910, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Crane Co Div Valve Div. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-293-6910 |
| Primary Part Number | 30121 PIECE 2 8IN |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Crane Co Div Valve Div |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 1.094 INCHES NOMINAL IN |
| Flange Diameter | 9.125 INCHES NOMINAL IN |
| Style Designator | THREADED FLANGED |
| Material Document and Classification | ASTM B164 ALLOY R-405 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Body Inside Diameter | 8.687 INCHES NOMINAL IN |
| Under Flange Height | 0.750 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 30121 PIECE 2 8IN PRIMARY | Crane Co Div Valve Div (USA) |
NSN 4820-01-293-6910 is a Seat,valve, manufactured by Crane Co Div Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-293-6910 has 1 manufacturer part number on file: 30121 PIECE 2 8IN (Crane Co Div Valve Div).
Key specifications for 30121 PIECE 2 8IN: Flange Seat to Disk End Height: 1.094 INCHES NOMINAL IN; Flange Diameter: 9.125 INCHES NOMINAL IN; Style Designator: THREADED FLANGED; Material Document and Classification: ASTM B164 ALLOY R-405 ASSN STD SINGLE MATERIAL RESPONSE SEAT. 8 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.