The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-559-8280, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-559-8280 |
| Primary Part Number | 91831A125 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Nominal Thread Size | 0.312 INCHES IN |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 91831A125 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5310-01-559-8280 is a Nut,self-Locking,hexagon, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-559-8280 has 1 manufacturer part number on file: 91831A125 (Mcmaster-Carr Supply Co).
Key specifications for 91831A125: Nominal Thread Size: 0.312 INCHES IN; Special Features: ONCE THE NYLON LOCKING ELEMENT IS FULLY ENGAGED, THESE REUSABLE LOCKNUTS RESIST VIBRATION AND WILL HOLD IN PLACE ANYWHERE ALONG THE THREADS OF THE MATING PART. THE LOCKING ELEMENT LIMITS FLUID LEAKAGE AND WONT DAMAGE OR DISTORT THREADS; IT IS EFFECTIVE UP TO 250 DEG F DEGF; Part Name Assigned by Controlling Agency: HEX NYLON-INSERT LOCKNUTS; ELASTIC LOCKNUTS OR ELASTIC STOP NUTS; End Item Identification: AN/AQS-24A CONTAINERS, SHIPPING AND STORAGE A. 3 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.