The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-431-7281, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser, Llc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-431-7281 |
| Primary Part Number | 21174 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.438 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 20 |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Nut Height | 0.219 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2B |
| Material | STEEL OVERALL |
| Surface Treatment | ZINC OVERALL |
| Nut Style | HEXAGON |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21174 PRIMARY | Dresser, Llc (USA) |
NSN 5310-00-431-7281 is a Nut,plain,hexagon, manufactured by Dresser, Llc, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-431-7281 has 1 cross-referenced part number: 21174 (Dresser, Llc).
There are 9 known substitutes for 5310-00-431-7281: 4720-00-202-6716, 4320-00-218-2310, 2990-00-248-4271 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21174: Width Across Flats: 0.438 INCHES NOMINAL IN; Thread Quantity Per Inch: 20; Nominal Thread Size: 0.250 INCHES IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 11 total characteristics are documented in the Federal Logistics Information System.