The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-031-5400, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-031-5400 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.030 INCHES NOMINAL IN |
| Nut Length | 0.525 INCHES MAXIMUM IN |
| Distance From Centerline to Flat | 0.180 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.405 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Nut Counterbore Depth | 0.120 INCHES NOMINAL NUT IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Center to Center Distance Between Mounting Holes Along Width | 0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.194 INCHES MINIMUM NUT IN |
| Distance From Aperture Center to Mounting Hole Center | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Nut Height | 0.425 INCHES MAXIMUM IN |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Nut Mounting Provision | STRAIGHT HOLES |
| 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 |
|---|---|
| 90-070-3-4 | 5/2 Secondary reference U.S. Government activity |
| 90-070-3-4 | 1/2 Source control — Government-approved source U.S. Government activity |
| M13741E02-4Y | 5/9 Secondary reference U.S. Government activity |
| M13741E02-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-031-5400 is a Nut,self-Locking,plate, classified under FSC 5310, Nuts and Washers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1560-01-645-3493, 4820-01-698-8015. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-031-5400: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.030 INCHES NOMINAL IN; Nut Length: 0.525 INCHES MAXIMUM IN; Distance From Centerline to Flat: 0.180 INCHES MAXIMUM IN. 21 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.