The Nut,plain,round, cataloged under National Stock Number 5310-00-531-1399, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-531-1399 |
| Primary Part Number | B79726 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Nut Thickness | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Material | STEEL COMP 4640 OR STEEL COMP 6150 OVERALL |
| Material Document and Classification | AMS 6312 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6448 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Surface Treatment | LEAD OVERALL |
| Drive Point Depth | 0.125 INCHES NOMINAL IN |
| Nut Diameter | 6.615 INCHES MINIMUM AND 6.635 INCHES MAXIMUM IN |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 5.750 INCHES IN |
| Thread Quantity Per Inch | 16 |
| Thread Series | UN |
| Nut Style | ROUND |
| Thread Class | 3B |
| Drive Point Quantity | 6 |
| Drive Point Width | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-531-1399 is a Nut,plain,round, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-531-1399 has 2 cross-referenced part numbers: B79726 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 79726 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
There is 1 known substitute for 5310-00-531-1399: 1550-01-646-6979. Verify interchangeability with system specifications before substitution.
Key specifications for B79726: Nut Thickness: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Material: STEEL COMP 4640 OR STEEL COMP 6150 OVERALL; Material Document and Classification: AMS 6312 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6448 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Surface Treatment: LEAD OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.