The Nut,plain,round, cataloged under National Stock Number 5310-00-134-3440, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hartzell Propeller Llc. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-134-3440 |
| Primary Part Number | A1349 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Hartzell Propeller Llc |
| Status | ACTIVE |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4140 OVERALL |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| Thread Quantity Per Inch | 12 |
| Nominal Thread Size | 1.250 INCHES IN |
| Thread Series | UNF |
| Nut Diameter | 1.720 INCHES NOMINAL IN |
| Nut Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Nut Thickness | 0.140 INCHES NOMINAL IN |
| Thread Class | 1B |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A1349 PRIMARY | Hartzell Propeller Llc (USA) |
NSN 5310-00-134-3440 is a Nut,plain,round, manufactured by Hartzell Propeller Llc, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-134-3440 has 1 cross-referenced part number: A1349 (Hartzell Propeller Llc).
There are 2 known substitutes for 5310-00-134-3440: 5895-00-464-3773, 5325-01-128-5226. Verify interchangeability with system specifications before substitution.
Key specifications for A1349: Surface Treatment: CADMIUM OVERALL; Material: STEEL COMP 4140 OVERALL; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM; Thread Quantity Per Inch: 12. 12 total characteristics are documented in the Federal Logistics Information System.