The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-00-901-3657, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-901-3657 |
| Primary Part Number | 114L2431-1 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Washer Outside Diameter | 2.940 INCHES MINIMUM AND 2.960 INCHES MAXIMUM IN |
| Width Across Flats | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UN |
| Washer Thickness | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-200/2,COMP 2014SJBCQQ-A-200/3,COMP 2024SJBDQQ-A-225/4,COM+2014 FED SPEC 1ST MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.500 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Countersink Angle | 45.0 DEGREES NOMINAL NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | ALUMINUM 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 |
|---|---|
| 114L2431-1 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 114L2431-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-901-3657 is a Nut,plain,extended Washer,hexago, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-901-3657 has 1 manufacturer part number on file: 114L2431-1 (The Boeing Company).
Key specifications for 114L2431-1: Overall Height: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Washer Outside Diameter: 2.940 INCHES MINIMUM AND 2.960 INCHES MAXIMUM IN; Width Across Flats: 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 14 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.