The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-135-5820, 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 10 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-135-5820 |
| Primary Part Number | 28573 |
| 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 |
| Distance From End to First Step | 1.3300 INCHES MINIMUM AND 1.3350 INCHES MAXIMUM IN |
| Design Type | SOLID |
| End Diameter | 0.6400 INCHES MINIMUM AND 0.6500 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 |
| Surface Treatment | ANODIZE |
| Style Designator | SEAT |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Material Document and Classification | QQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE |
| First Step Diameter | 0.9950 INCHES MINIMUM AND 0.9990 INCHES MAXIMUM IN |
| Chamfer Angle in Deg | 15.0 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 28573 PRIMARY | Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems (USA) |
NSN 5340-01-135-5820 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 5340-01-135-5820 has 1 cross-referenced part number: 28573 (Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems).
There are 5 known substitutes for 5340-01-135-5820: 3030-00-251-0047, 6145-00-269-0125, 5330-01-198-0614 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 28573: Distance From End to First Step: 1.3300 INCHES MINIMUM AND 1.3350 INCHES MAXIMUM IN; Design Type: SOLID; End Diameter: 0.6400 INCHES MINIMUM AND 0.6500 INCHES MAXIMUM IN; Special Features: NOT CASEHARDENED. 12 total characteristics are documented in the Federal Logistics Information System.