The Disk,valve, cataloged under National Stock Number 4820-01-602-6122, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Stewart & Stevenson Power Products Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-602-6122 |
| Primary Part Number | 11E4217439 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Stewart & Stevenson Power Products Llc |
| Status | ACTIVE |
| Shank Diameter | 2.59 INCHES NOMINAL IN |
| Style Designator | SWING CHECK |
| Material | STEEL |
| 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 |
|---|---|
| 11E4217439 | Stewart & Stevenson Power Products Llc (USA) |
| Reference | Meaning |
|---|---|
| 11E421439 | 7/2 Vendor item drawing reference Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center |
| SM-752-16FO | 3/9 Design control — primary reference Stewart & Stevenson Power Products Llc |
NSN 4820-01-602-6122 is a Disk,valve, manufactured by Stewart & Stevenson Power Products Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-602-6122 has 1 manufacturer part number on file: 11E4217439 (Stewart & Stevenson Power Products Llc).
Key specifications for 11E4217439: Shank Diameter: 2.59 INCHES NOMINAL IN; Style Designator: SWING CHECK; Part Name Assigned by Controlling Agency: VALUE, POPPET, QUICK COUPLING; End Item Identification: RIA14900-1-2. 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.