The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-208-4148, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-208-4148 |
| Primary Part Number | ZA1-1200P-048 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Plate Thickness | 0.055 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Nut Length | 1.281 INCHES NOMINAL IN |
| Thread Series | UNF |
| Precious Material | SILVER |
| Plate Width | 0.500 INCHES NOMINAL IN |
| Temp Rating | 1200.0 FAHRENHEIT NOMINAL DEGF |
| Mounting Provision Location | NUT PROJECTION SIDE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Welding Projection Quantity | 2 |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nut Mounting Provision | WELDING PROJECTIONS |
| 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 |
|---|---|
| ZA1-1200P-048 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| ZA1-1200P-048 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-208-4148 is a Nut,self-Locking,plate, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-208-4148 has 1 manufacturer part number on file: ZA1-1200P-048 (Esna, Llc).
Key specifications for ZA1-1200P-048: Plate Thickness: 0.055 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Nut Length: 1.281 INCHES NOMINAL IN; Thread Series: UNF; Precious Material: SILVER. 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.