The Nut,plain,round, cataloged under National Stock Number 5310-01-057-2871, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is C and D Batteries an Allied Co Plant 1. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-057-2871 |
| Primary Part Number | K4949 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | C and D Batteries an Allied Co Plant 1 |
| Status | ACTIVE |
| Thread Class | 2B |
| Nominal Thread Size | 2.500 INCHES IN |
| Thread Quantity Per Inch | 9 |
| Thread Series | UNS |
| Material | RUBBER SYNTHETIC OVERALL |
| Drive Point Width | 0.750 INCHES NOMINAL IN |
| Nut Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Nut Thickness | 0.560 INCHES NOMINAL IN |
| Drive Point Quantity | 6 |
| Nut Diameter | 0.350 INCHES NOMINAL IN |
| Drive Point Depth | 0.220 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-01-057-2871 is a Nut,plain,round, manufactured by C and D Batteries an Allied Co Plant 1, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-057-2871 has 2 cross-referenced part numbers: K4949 (C and D Batteries an Allied Co Plant 1), PB-313 (C and D Batteries an Allied Co Plant 1).
There are 2 known substitutes for 5310-01-057-2871: 5950-00-172-3037, 5305-00-782-9494. Verify interchangeability with system specifications before substitution.
Key specifications for K4949: Thread Class: 2B; Nominal Thread Size: 2.500 INCHES IN; Thread Quantity Per Inch: 9; Thread Series: UNS. 12 total characteristics are documented in the Federal Logistics Information System.