The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-417-5131, 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 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-417-5131 |
| Primary Part Number | 84999-14 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Width Across Flats | 1.240 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.675 INCHES IN |
| Nut Height | 0.953 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 14 |
| Material | IRON ALLOY 660 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 |
|---|---|
| 03A367-1 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| MN51KF-14 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 84999-14 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| MN51KF-14 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| VN2017DA144 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-417-5131 is a Nut,plain,hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-417-5131 has 4 manufacturer part numbers on file: 03A367-1 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), MN51KF-14 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 84999-14 (Sps Technologies, Llc Dba PB Fasteners), MN51KF-14 (Hi-Shear Corporation).
Key specifications for 84999-14: Width Across Flats: 1.240 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.675 INCHES IN. 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.