The Nut,plain,knurled, cataloged under National Stock Number 5310-00-672-5944, 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17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-672-5944 |
| Item Name | Nut,plain,knurled |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UN |
| Material Document and Classification | QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OR SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nut Counterbore Depth | 0.312 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.375 INCHES IN |
| Nut Diameter | 4.125 INCHES NOMINAL IN |
| Counterbore Diameter | 2.500 INCHES NOMINAL NUT IN |
| Nut Thickness | 0.750 INCHES NOMINAL IN |
| Small End Length | 0.625 INCHES NOMINAL IN |
| Small End Diameter | 3.375 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | KNURLED |
| Thread Class | 2B |
| Thread Quantity Per Inch | 6 |
| Material | STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1527 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL |
| Knurl Width | 0.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 42B13039 | 5/9 Secondary reference U.S. Government activity |
| 42B13039 | 3/9 Design control — primary reference U.S. Government activity |
| 42B13039 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-672-5944 is a Nut,plain,knurled, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-672-5944: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UN; Material Document and Classification: QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OR SAE ASSN STD ALL MATERIAL RESPONSES OVERALL; Nut Counterbore Depth: 0.312 INCHES NOMINAL NUT IN. 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.