The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-124-4585, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems. 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-124-4585 |
| Primary Part Number | 20521 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — No Item Name Available |
| Manufacturer | Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems |
| Status | ACTIVE |
| First Step Diameter | 1.9920 INCHES MINIMUM AND 1.9960 INCHES MAXIMUM IN |
| Countersink Diameter | 1.3750 INCHES NOMINAL IN |
| End Diameter | 1.7150 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| Material Document and Classification | AMS 4120 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | ALUMINUM ALLOY 2024 |
| Surface Treatment | ANODIZE |
| Countersink Angle in Deg | 90.0 |
| Bore Diameter | 1.6250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20521 PRIMARY | Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems (USA) |
NSN 5340-01-124-4585 is a Seat,helical Compression Spring, manufactured by Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems, classified under FSC 5340 (No Item Name Available). Status: active.
NSN 5340-01-124-4585 has 1 cross-referenced part number: 20521 (Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems).
There are 6 known substitutes for 5340-01-124-4585: 5340-00-559-8763, 4730-00-277-5309, 5945-00-883-6837 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20521: First Step Diameter: 1.9920 INCHES MINIMUM AND 1.9960 INCHES MAXIMUM IN; Countersink Diameter: 1.3750 INCHES NOMINAL IN; End Diameter: 1.7150 INCHES NOMINAL IN; Design Type: SOLID. 11 total characteristics are documented in the Federal Logistics Information System.