The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-138-7244, 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13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-138-7244 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 2.900 INCHES MINIMUM AND 2.900 INCHES MINIMUM AND 3.000 INCHES MAXIMUM3.000 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Nominal Thread Size | 2.000 INCHES2.000 INCHES IN |
| Nut Height | 1.675 INCHES MINIMUM AND 1.675 INCHES MINIMUM AND 1.763 INCHES MAXIMUM1.763 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALLPASSIVATE OVERALL |
| Nut Style | HEXAGONHEXAGON |
| Thread Class | 2B2B |
| Thread Quantity Per Inch | 4-1/24-1/2 |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 317 OR STEEL COMP 347 OVERALL |
| Bearing Surface Type | CHAMFERED OR CHAMFERED OR WASHER FACEDWASHER FACED |
| 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 |
|---|---|
| MS51971-16 | 2/2 Government specification standardization U.S. Government activity |
| FF-N-836 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-138-7244 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-138-7244: Width Across Flats: 2.900 INCHES MINIMUM AND 2.900 INCHES MINIMUM AND 3.000 INCHES MAXIMUM3.000 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL66 FED STD ALL MATERIAL RESPONSES OVERALL. 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.