The Nut,plain,round, cataloged under National Stock Number 5310-01-193-2325, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-193-2325 |
| Primary Part Number | 1881B159 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Hole Thread Quantity Per Inch | 32 |
| Surface Treatment Document and Classification | QQ-P-416,CLASS 1,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Hole Configuration Style | CONFIGURATION F |
| Material Document and Classification | MIL-S-8844 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.440 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.250 INCHES IN |
| Nut Diameter | 4.000 INCHES NOMINAL IN |
| Drive Point Depth | 0.155 INCHES NOMINAL IN |
| Nut Thickness | 0.660 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Drive Point Quantity | 6 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Hole Nominal Thread Diameter | 0.190 INCHES IN |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 4340 OVERALL |
| Hole Type and Quantity | 6 TAPPED |
| 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 |
|---|---|
| 1881B159 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1881B159 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 5310-01-193-2325 is a Nut,plain,round, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-193-2325 has 1 manufacturer part number on file: 1881B159 (Goodrich Corporation).
Key specifications for 1881B159: Hole Thread Quantity Per Inch: 32; Surface Treatment Document and Classification: QQ-P-416,CLASS 1,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT (UNJ); Hole Configuration Style: CONFIGURATION F. 19 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.