The Nut,plain,assembled Washer, cataloged under National Stock Number 5310-00-458-2843, 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 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-458-2843 |
| Primary Part Number | LH4084-02 |
| Item Name | Nut,plain,assembled Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Washer Outside Diameter | 0.320 INCHES NOMINAL IN |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS 2417 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 800.0 FAHRENHEIT NOMINAL DEGF |
| Hardness Rating | 41.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Height | 0.240 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Nut Style | FLAT WITH TURNED UP EDGE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 601 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 |
|---|---|
| LH4084-02 | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| NAS1288-3 | 3/2 Design control — primary reference U.S. Government activity |
| LH4084-02 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-458-2843 is a Nut,plain,assembled Washer, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-458-2843 has 1 manufacturer part number on file: LH4084-02 (Esna, Llc).
Key specifications for LH4084-02: Overall Height: 0.186 INCHES NOMINAL IN; Washer Outside Diameter: 0.320 INCHES NOMINAL IN; Width Across Flats: 0.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS 2417 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 15 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.