The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-008-6052, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-008-6052 |
| Primary Part Number | 78758 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Width Across Flats | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Precious Material | SILVER |
| Temp Rating | 800.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.450 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 78758 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| Z13419-6 | 5/9 Secondary reference Harvard Industries Inc |
| 78758 | 5/9 Secondary reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 5310-01-008-6052 is a Nut,self-Locking,hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-008-6052 has 1 manufacturer part number on file: 78758 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 78758: Width Across Flats: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN; Thread Series: UNF; Precious Material: SILVER; Temp Rating: 800.0 FAHRENHEIT NOMINAL DEGF. 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.