The Nut,plain,round, cataloged under National Stock Number 5310-01-217-4639, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-217-4639 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UN |
| Special Test Features | 2 HOLES 0.098 IN MIN, 0.103 IN MAX DIA THROUGH SIDE IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-T-6736 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE AND AMS 6530 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.000 INCHES IN |
| Counterbore Diameter | 3.030 INCHES NOMINAL FIRST END IN |
| Drive Point Depth | 0.120 INCHES NOMINAL IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4130 AND STEEL COMP 8630 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 |
|---|---|
| 6-39396-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-217-4639 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-217-4639: Thread Series: UN; Special Test Features: 2 HOLES 0.098 IN MIN, 0.103 IN MAX DIA THROUGH SIDE IN; Material Document and Classification: MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-T-6736 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE AND AMS 6530 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Drive Point Width: 0.250 INCHES NOMINAL IN. 13 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.