The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-431-8864, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 22 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-431-8864 |
| Primary Part Number | 10568-B-18L1 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Criticality Code Justification | ZZZY |
| Nominal Thread Size | 0.500 INCHES IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 13 |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 10568-B-18L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 11940-F-18 ITEM 179CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 10591-H-18 PIECE 179CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| PL-11940-F-18 ITEM 179CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| B-050B179CX1L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 10591-H-18 ITEM 179CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| PL-10591-H-18 ITEM 179CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| PL-10591-F-18 PIECE 179CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 10591-H-18 ITEM 179C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| PL-10591-H-18 ITEM 179C | 5/9 Secondary reference U.S. Government activity |
| PL-11940-F-18 PIECE 179CL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 10591-H-18 ITEM 179C | 5/9 Secondary reference U.S. Government activity |
| PL-10591-H-18 PIECE 179CL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| B-050B179CX1 | 3/1 Design control — primary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| PL-11940-F-18 ITEM 179C | 5/9 Secondary reference U.S. Government activity |
| 10591-H-18 PIECE 179C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| PL-11940-F-18 PIECE 179C | 5/9 Secondary reference U.S. Government activity |
| 11940-F-18 ITEM 179C | 5/9 Secondary reference U.S. Government activity |
| 10591-H-18 PIECE 179C | 5/9 Secondary reference U.S. Government activity |
| PL-10591-F-18 PIECE 179C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| PL-10591-F-18 PIECE 179C | 5/9 Secondary reference U.S. Government activity |
| PL-10591-H-18 ITEM 179C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 10568-B-18 | 5/9 Secondary reference U.S. Government activity |
| PL-10591-H-18 PIECE 179C | 5/9 Secondary reference U.S. Government activity |
| PL-11940-F-18 ITEM 179C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 11940-F-18 ITEM 179C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| B-050B179CX1 | 5/9 Secondary reference U.S. Government activity |
| PL-10591-H-18 PIECE 179C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 5310-01-431-8864 is a Nut,plain,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-431-8864 has 8 manufacturer part numbers on file: 10568-B-18L1 (Naval Inventory Control Point Mechanicsburg), 11940-F-18 ITEM 179CL1 (Naval Inventory Control Point Mechanicsburg), 10591-H-18 PIECE 179CL1 (Naval Inventory Control Point Mechanicsburg), PL-11940-F-18 ITEM 179CL1 (Naval Inventory Control Point Mechanicsburg), B-050B179CX1L1 (Naval Inventory Control Point Mechanicsburg) and 3 more.
Key specifications for 10568-B-18L1: Thread Series: UNIFIED NATIONAL COARSE (UNC); Criticality Code Justification: ZZZY; Nominal Thread Size: 0.500 INCHES IN; Thread Class: 3B. 6 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.