The Nut,plain,round, cataloged under National Stock Number 5310-00-155-5409, 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17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-155-5409 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2481 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNS |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +2.7149 TO 2.7200 INCHES IN |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.751 INCHES IN |
| Nut Diameter | 3.329 INCHES MINIMUM AND 3.349 INCHES MAXIMUM IN |
| Departure From Cited Document | AS MODIFIED BY MATERIAL |
| Drive Point Depth | 0.086 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Nut Thickness | 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Countersink Angle | 90.0 DEGREES NOMINAL NUT |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 316 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 |
|---|---|
| MS172250 | 4/1 Identification reference U.S. Government activity |
| 2609970 | 3/2 Design control — primary reference U.S. Government activity |
| 2609970 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5310-00-155-5409 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-00-685-2767. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-155-5409: Surface Treatment Document and Classification: AMS 2481 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNS; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Thread Pitch Diameters: +2.7149 TO 2.7200 INCHES 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.