The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-266-5381, 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 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-266-5381 |
| Primary Part Number | RMLHA73-4-02 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.072 INCHES MINIMUM AND 0.077 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 JOINT FINE (UNJF) |
| Plate Width | 0.449 INCHES NOMINAL IN |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM 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 | 0.560 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Height | 0.200 INCHES NOMINAL IN |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 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 |
|---|---|
| RMLHA73-4-02 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| 10110246 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| RMLHA73-4-02 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-266-5381 is a Nut,self-Locking,plate, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-266-5381 has 1 manufacturer part number on file: RMLHA73-4-02 (Esna, Llc).
Key specifications for RMLHA73-4-02: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.072 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN; Nut Length: 0.730 INCHES NOMINAL IN; Distance From Mounting Hole Center to Base: 0.450 INCHES NOMINAL IN. 19 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.