The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-339-7271, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Airtronics, Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-339-7271 |
| Primary Part Number | 6-84554 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Airtronics, Llc |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS |
| Design Type | SOLID |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE |
| Material | ALUMINUM ALLOY 2024 |
| 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 |
|---|---|
| 6-84554 | Airtronics, Llc (USA) |
| 6-84554 | United Dynamics, Inc (USA) |
| 6-84554 | Thomas Instrument, Incorporated (USA) |
| 6-84554 | The Boeing Company Div Commercial (USA) |
| 6-84554 | Pht Aerospace Llc (USA) |
| Reference | Meaning |
|---|---|
| 6-84554 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-339-7271 is a Seat,helical Compression Spring, manufactured by Airtronics, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-339-7271 has 5 manufacturer part numbers on file: 6-84554 (Airtronics, Llc), 6-84554 (United Dynamics, Inc), 6-84554 (Thomas Instrument, Incorporated), 6-84554 (The Boeing Company Div Commercial), 6-84554 (Pht Aerospace Llc).
Key specifications for 6-84554: FSC Application Data: AIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS; Design Type: SOLID; Material Document and Classification: QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE; Material: ALUMINUM ALLOY 2024. 4 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.