The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-364-4818, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Flexible Fixturing Systems, Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-364-4818 |
| Primary Part Number | 439.0012 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Flexible Fixturing Systems, Inc |
| Status | ACTIVE |
| Width Across Flats | 19.0 MILLIMETERS NOMINAL MM |
| Thread Tolerance Class | 6H INTERNAL |
| Thread Series | M |
| Thread Pitch in Millimeters | 1.75 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 12.0 MILLIMETERS MM |
| Nut Height | 6.0 MILLIMETERS NOMINAL MM |
| Thread Class | 2B |
| 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 |
|---|---|
| 439.0012 PRIMARY | Flexible Fixturing Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| DJN439012 | 5/9 Secondary reference Flexible Fixturing Systems, Inc |
NSN 5310-01-364-4818 is a Nut,plain,hexagon, manufactured by Flexible Fixturing Systems, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-364-4818 has 1 manufacturer part number on file: 439.0012 (Flexible Fixturing Systems, Inc).
Key specifications for 439.0012: Width Across Flats: 19.0 MILLIMETERS NOMINAL MM; Thread Tolerance Class: 6H INTERNAL; Thread Series: M; Thread Pitch in Millimeters: 1.75. 9 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.