The Nut,plain,plate, cataloged under National Stock Number 5310-01-071-1399, 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 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-071-1399 |
| Primary Part Number | A12165-4-4 |
| Item Name | Nut,plain,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Plate Thickness | 0.055 INCHES NOMINAL IN |
| Nut Length | 0.967 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.625 INCHES NOMINAL IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Nut Counterbore Depth | 0.485 INCHES NOMINAL BASE IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Height | 0.710 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| 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 |
|---|---|
| A12165-4-4 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| C4227D048-4 | 7/2 Vendor item drawing reference U.S. Government activity |
| NS103146G048-4 | 5/2 Secondary reference U.S. Government activity |
| A12165-4-4 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-071-1399 is a Nut,plain,plate, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-071-1399 has 1 manufacturer part number on file: A12165-4-4 (Esna, Llc).
Key specifications for A12165-4-4: Plate Thickness: 0.055 INCHES NOMINAL IN; Nut Length: 0.967 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 16 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.