The Disk,valve, cataloged under National Stock Number 4820-01-332-3946, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Carlson Metal Products Inc Dba Carlson Metal Products Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-332-3946 |
| Primary Part Number | 310D165 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Carlson Metal Products Inc Dba Carlson Metal Products Inc |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 310D165 | Carlson Metal Products Inc Dba Carlson Metal Products Inc (USA) |
| 911-573 REF. 2.2IN | Dover Resources, Inc. Div Norriseal (USA) |
| Reference | Meaning |
|---|---|
| 51310D165 | 3/9 Design control — primary reference U.S. Government activity |
| 911-573 REF 2 2IN | C/1 Advisory reference — outside the item-of-supply concept Dover Resources, Inc. Div Norriseal |
| 51310D165 | C/1 Advisory reference — outside the item-of-supply concept Dover Resources, Inc. Div Norriseal |
| 911-573 REF. 2 2IN | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-332-3946 is a Disk,valve, manufactured by Carlson Metal Products Inc Dba Carlson Metal Products Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-332-3946 has 2 manufacturer part numbers on file: 310D165 (Carlson Metal Products Inc Dba Carlson Metal Products Inc), 911-573 REF. 2.2IN (Dover Resources, Inc. Div Norriseal).
Key specifications for 310D165: Material: ALUMINUM ALLOY. 1 specification is 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.