The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-633-5116, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Allmetal Screw Products Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-633-5116 |
| Primary Part Number | MS21044N3 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Allmetal Screw Products Corp |
| Status | ACTIVE |
| Width Across Flats | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.1900 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH METALLIC INSERT |
| Nut Height | 0.281 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING NUT |
| Material | PLASTIC NYLON LOCKING INSERT |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 95154A140 | Mcmaster-Carr Supply Co (USA) |
| CHU116ITEM 71 | Chugach Industries, Inc. (USA) |
| MS21044N3 PRIMARY | Allmetal Screw Products Corp (USA) |
NSN 5310-01-633-5116 is a Nut,self-Locking,hexagon, manufactured by Allmetal Screw Products Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-633-5116 has 3 manufacturer part numbers on file: 95154A140 (Mcmaster-Carr Supply Co), CHU116ITEM 71 (Chugach Industries, Inc.), MS21044N3 (Allmetal Screw Products Corp).
Key specifications for MS21044N3: Width Across Flats: 0.375 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.1900 INCHES IN; Locking Feature: PREVAILING TORQUE WITH METALLIC INSERT. 11 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.