The Nut,plain,spline, cataloged under National Stock Number 5310-01-155-1889, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-155-1889 |
| Item Name | Nut,plain,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | STD F-207,FSCM 80009 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-B-626,1/4 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST END IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Diameter | 0.250 INCHES NOMINAL IN |
| Counterbore Diameter | 0.137 INCHES MINIMUM AND 0.143 INCHES MAXIMUM FIRST END IN |
| Pilot Diameter | 0.159 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Pilot Length | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Nut Height | 0.215 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Surface Treatment | COPPER AND TIN AND ZINC OVERALL |
| Nut Style | SPLINE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 40 |
| Material | COPPER ALLOY 353 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 129-0317-00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-155-1889 is a Nut,plain,spline, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-155-1889: Surface Treatment Document and Classification: STD F-207,FSCM 80009 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-B-626,1/4 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST END IN. 16 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.