The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-351-5758, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mid-America Aerotech, Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-351-5758 |
| Primary Part Number | 184226-001 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mid-America Aerotech, Llc |
| Status | ACTIVE |
| Countersink Angle in Deg | 45.0 |
| Material Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| End Diameter | 1.6000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| Design Type | SOLID |
| Material Document and Classification | AMS 5659 ASSN STD SINGLE MATERIAL RESPONSE |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 1.2050 INCHES MINIMUM AND 1.2100 INCHES MAXIMUM IN |
| Material | STEEL COMP XM-12 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 184226-001 | Mid-America Aerotech, Llc (USA) |
| Reference | Meaning |
|---|---|
| 184226-001 | 3/9 Design control — primary reference U.S. Government activity |
| 184226-001 | 5/9 Secondary reference Moog Inc Div Moog Inc., Space and Defense - Salt Lake City |
NSN 5340-01-351-5758 is a Seat,helical Compression Spring, manufactured by Mid-America Aerotech, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-351-5758 has 1 manufacturer part number on file: 184226-001 (Mid-America Aerotech, Llc).
Key specifications for 184226-001: Overall Height: 0.0920 INCHES MINIMUM AND 0.1020 INCHES MAXIMUM IN; Countersink Angle in Deg: 45.0; Material Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM; End Diameter: 1.6000 INCHES NOMINAL IN. 9 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.