The Nut,plain,round, cataloged under National Stock Number 5310-01-193-2393, 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 15 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-193-2393 |
| Primary Part Number | 1881B283 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,CLASS 1,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Material Document and Classification | MIL-S-8844,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.280 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.000 INCHES IN |
| Nut Diameter | 2.625 INCHES NOMINAL IN |
| Drive Point Depth | 0.375 INCHES NOMINAL IN |
| Nut Thickness | 0.750 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Drive Point Quantity | 6 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 4340 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 |
|---|---|
| 1881B283 PRIMARY | Goodrich Corporation (USA) |
| 1881B283 | Es3 Prime Logistics Group, Inc. Dba Es3 Plg (USA) |
| 1881B283 | Machine Specialties, Llc (USA) |
| 1881B283 | Thomas Instrument, Incorporated (USA) |
| 1881B283 | Hdi Landing Gear Usa Inc (USA) |
| 1881B283 | Thomas Instrument, Incorporated (USA) |
| 1881B283 | Heroux-Devtek Inc (CAN) |
| Reference | Meaning |
|---|---|
| 1881B283 | 5/2 Secondary reference U.S. Government activity |
| 1881B283 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 5310-01-193-2393 is a Nut,plain,round, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-193-2393 has 7 manufacturer part numbers on file: 1881B283 (Goodrich Corporation), 1881B283 (Es3 Prime Logistics Group, Inc. Dba Es3 Plg), 1881B283 (Machine Specialties, Llc), 1881B283 (Thomas Instrument, Incorporated), 1881B283 (Hdi Landing Gear Usa Inc) and 2 more.
Key specifications for 1881B283: Surface Treatment Document and Classification: QQ-P-416,CLASS 1,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT (UNJ); Material Document and Classification: MIL-S-8844,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.280 INCHES NOMINAL IN. 15 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.