The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-134-0203, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-134-0203 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.993 INCHES MINIMUM AND 0.993 INCHES MINIMUM AND 1.010 INCHES MAXIMUM1.010 INCHES MAXIMUM IN |
| Bearing Surface Finish | 63.0 MICROINCHES63.0 MICROINCHES |
| Surface Treatment Document and Classification | QQ-S-365,GRADE A FED SPEC ALL TREATMENT RESPONSES OVERALLQQ-S-365,GRADE A FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Series | UNUN |
| Precious Material | SILVERSILVER |
| Material Document and Classification | QQ-B-626,TEMPER 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-B-626,TEMPER 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES0.750 INCHES IN |
| Nut Height | 0.088 INCHES MINIMUM AND 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM0.098 INCHES MAXIMUM IN |
| Surface Treatment | SILVER AND SILVER AND CHROMATE OVERALLCHROMATE OVERALL |
| Precious Material and Location | OVERALL SILVEROVERALL SILVER |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM BOTH ENDS100.0 DEGREES MAXIMUM BOTH ENDS |
| Nut Style | HEXAGONHEXAGON |
| Thread Class | 2B2B |
| Thread Quantity Per Inch | 3232 |
| Material | COPPER ALLOY 360 OVERALL |
| Bearing Surface Type | CHAMFEREDCHAMFERED |
| 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 |
|---|---|
| SM-B-698915 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-134-0203 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-134-0203: Width Across Flats: 0.993 INCHES MINIMUM AND 0.993 INCHES MINIMUM AND 1.010 INCHES MAXIMUM1.010 INCHES MAXIMUM IN; Bearing Surface Finish: 63.0 MICROINCHES63.0 MICROINCHES; Surface Treatment Document and Classification: QQ-S-365,GRADE A FED SPEC ALL TREATMENT RESPONSES OVERALLQQ-S-365,GRADE A FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Series: UNUN. 17 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.