The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-024-2185, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-024-2185 |
| Primary Part Number | 220212A |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Countersink Angle in Deg | 15.0 |
| FSC Application Data | RETAINERS,VALVE SPRING,GASOLINE ENGINE,NONAIRCRAFT |
| First Step Diameter | 0.8120 INCHES NOMINAL IN |
| End Diameter | 0.6050 INCHES MINIMUM AND 0.6150 INCHES MAXIMUM IN |
| Countersink Diameter | 0.4680 INCHES NOMINAL IN |
| Second End Diameter | 0.6000 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.1270 INCHES NOMINAL IN |
| Design Type | SOLID |
| Material Document and Classification | SAE 1113 ASSN STD SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.2660 INCHES NOMINAL IN |
| Features Provided | CASEHARDENED |
| Counterbore Diameter | 0.5130 INCHES MINIMUM AND 0.5180 INCHES MAXIMUM IN |
| First Step Length | 0.0930 INCHES NOMINAL IN |
| Bore Diameter | 0.3590 INCHES NOMINAL IN |
| Material | STEEL COMP 1213 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 220212A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 220212A | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5340-00-024-2185 is a Seat,helical Compression Spring, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-024-2185 has 1 manufacturer part number on file: 220212A (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 220212A: Overall Height: 0.5930 INCHES NOMINAL IN; Countersink Angle in Deg: 15.0; FSC Application Data: RETAINERS,VALVE SPRING,GASOLINE ENGINE,NONAIRCRAFT; First Step Diameter: 0.8120 INCHES NOMINAL IN. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.