The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-383-8729, 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 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-383-8729 |
| Primary Part Number | L55LHA3022-02 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Lubrication | SOLUBLE LUBRICANT |
| Plate Thickness | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| Nut Length | 0.940 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.500 INCHES MAXIMUM IN |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Mounting Hole Arrangement Style | 2 HOLES |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 0.686 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Nut Height | 0.325 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | PLATE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| L55LHA3022-02 PRIMARY | Esna, Llc (USA) |
| F1967-E3CW PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| STSCF004 | 7/2 Vendor item drawing reference U.S. Government activity |
| F1967-E3CW | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
| L55LHA3022-02 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-383-8729 is a Nut,self-Locking,plate, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-383-8729 has 2 manufacturer part numbers on file: L55LHA3022-02 (Esna, Llc), F1967-E3CW (Howmet Global Fastening Systems Inc).
Key specifications for L55LHA3022-02: Lubrication: SOLUBLE LUBRICANT; Plate Thickness: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN; Nut Length: 0.940 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.