The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-041-9646, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-041-9646 |
| Primary Part Number | 52LHA71-4-82 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Plate Thickness | 0.032 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Nut Length | 0.730 INCHES NOMINAL IN |
| Distance From Mounting Hole Center to Base | 0.450 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Plate Width | 0.449 INCHES NOMINAL IN |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Mounting Hole Arrangement Style | 2 HOLES |
| Distance From Base to Center of Aperture | 0.281 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Center to Center Distance Between Mounting Holes Along Width | 0.564 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.164 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.200 INCHES NOMINAL IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 52LHA71-4-82 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| GN500AG08-4 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 52LHA71-4-82 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-041-9646 is a Nut,self-Locking,plate, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-041-9646 has 1 manufacturer part number on file: 52LHA71-4-82 (Esna, Llc).
Key specifications for 52LHA71-4-82: Plate Thickness: 0.032 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN; Nut Length: 0.730 INCHES NOMINAL IN; Distance From Mounting Hole Center to Base: 0.450 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 18 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.