The Nut,plain,round, cataloged under National Stock Number 5310-00-177-7624, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-177-7624 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-N-21337 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNS |
| Hardness Rating | 90.0 ROCKWELL B MAXIMUM |
| Thread Pitch Diameters | +1.9309 TO 1.9354 INCHES IN |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.967 INCHES IN |
| Nut Diameter | 2.672 INCHES MINIMUM AND 2.692 INCHES MAXIMUM IN |
| Drive Point Depth | 0.094 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 4 CLASS |
| Nut Thickness | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 45.0 DEGREES MINIMUM AND 60.0 DEGREES MAXIMUM FIRST END |
| Countersink Angle | 45.0 DEGREES MINIMUM AND 60.0 DEGREES MAXIMUM SECOND END |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 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 |
|---|---|
| MS19068-103 | 2/2 Government specification standardization U.S. Government activity |
| MILN21337 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-177-7624 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-177-7624: Surface Treatment Document and Classification: MIL-N-21337 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNS; Hardness Rating: 90.0 ROCKWELL B MAXIMUM; Thread Pitch Diameters: +1.9309 TO 1.9354 INCHES IN. 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.