The Nut,plain,round, cataloged under National Stock Number 5310-01-128-4112, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-128-4112 |
| Primary Part Number | NS-3983 FIND 4 1 IN |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Thread Series | UNS |
| Material Document and Classification | MIL-B-21230,ALLOY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.875 INCHES IN |
| Nut Diameter | 3.312 INCHES NOMINAL IN |
| Drive Point Depth | 0.125 INCHES NOMINAL IN |
| Nut Thickness | 0.938 INCHES NOMINAL IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 12 |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| NS-3983 FIND 4 1 IN PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| NS-3983 FIND 4 1 IN | 5/9 Secondary reference National Oilwell |
| NS-3983 FIND4 1 | C/1 Advisory reference — outside the item-of-supply concept National Oilwell |
NSN 5310-01-128-4112 is a Nut,plain,round, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-128-4112 has 1 manufacturer part number on file: NS-3983 FIND 4 1 IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for NS-3983 FIND 4 1 IN: Thread Series: UNS; Material Document and Classification: MIL-B-21230,ALLOY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.375 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 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.