The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-207-5249, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-207-5249 |
| Primary Part Number | 79HA1-82BC100X20 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Plate Thickness | 0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Nut Length | 0.969 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Plate Width | 0.391 INCHES NOMINAL IN |
| Temp Rating | 550.0 FAHRENHEIT NOMINAL DEGF |
| Mounting Hole Arrangement Style | 2 HOLES |
| Mounting Hole Countersink Angle | 100.0 DEGREES NOMINAL |
| Mounting Hole Diameter | 0.098 INCHES NOMINAL IN |
| Mounting Provision Location | OPPOSITE NUT PROJECTION SIDE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.344 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH METALLIC INSERT |
| Center to Center Distance Between Mounting Holes Along Length | 0.686 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Nut Height | 0.281 INCHES NOMINAL IN |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING NUT |
| Material | STEEL CORROSION RESISTING BASE |
| Material | NICKEL ALLOY LOCKING INSERT |
| Nut Mounting Provision | COUNTERSUNK HOLES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 79HA1-82BC100X20 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| 79HA1-82BC100X20 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-207-5249 is a Nut,self-Locking,plate, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-207-5249 has 1 manufacturer part number on file: 79HA1-82BC100X20 (Esna, Llc).
Key specifications for 79HA1-82BC100X20: Plate Thickness: 0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Nut Length: 0.969 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Plate Width: 0.391 INCHES NOMINAL IN. 22 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.