The Seat,valve, cataloged under National Stock Number 4820-01-264-3170, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cummins Inc.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-264-3170 |
| Primary Part Number | 3904105 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Body Outside Diameter | 43.7 MILLIMETERS NOMINAL MM |
| Body Stepped Inside Diameter | 36.0 MILLIMETERS NOMINAL FIRST STEP MM |
| Body Stepped Inside Diameter | 39.5 MILLIMETERS NOMINAL SECOND STEP MM |
| Style Designator | PLAIN |
| 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 |
|---|---|
| J90410-5 | Cnh Industrial France (FRA) |
| CBU1327 | Leyland Trucks Ltd (for Spare Parts See U6425) (GBR) |
| 3904105 | Grove U.s. Llc Dba Grove Us Llc (USA) |
| J904105 | Cnh Industrial America Llc Dba Cnh America (USA) |
| 3904105 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4820PL0826221 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4820-01-264-3170 is a Seat,valve, manufactured by Cummins Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-264-3170 has 5 manufacturer part numbers on file: J90410-5 (Cnh Industrial France), CBU1327 (Leyland Trucks Ltd (for Spare Parts See U6425)), 3904105 (Grove U.s. Llc Dba Grove Us Llc), J904105 (Cnh Industrial America Llc Dba Cnh America), 3904105 (Cummins Inc.).
Key specifications for 3904105: Overall Height: 6.7 MILLIMETERS NOMINAL MM; Body Outside Diameter: 43.7 MILLIMETERS NOMINAL MM; Body Stepped Inside Diameter: 36.0 MILLIMETERS NOMINAL FIRST STEP MM; Body Stepped Inside Diameter: 39.5 MILLIMETERS NOMINAL SECOND STEP MM. 5 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.