The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-00-174-8604, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rotair Aerospace Corp. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-174-8604 |
| Primary Part Number | 64658-03111-102 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rotair Aerospace Corp |
| Status | ACTIVE |
| FSC Application Data | SERVOCYLINDER,AUTOMATIC FLIGHT CONTROL SYSTEM,AIRCRAFT |
| Surface Treatment Document and Classification | SS8435 FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 64658-03111-102 PRIMARY | Rotair Aerospace Corp (USA) |
| 64658-03111-102 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5340-00-174-8604 is a Retainer,helical Compression Spr, manufactured by Rotair Aerospace Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-174-8604 has 2 manufacturer part numbers on file: 64658-03111-102 (Rotair Aerospace Corp), 64658-03111-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 64658-03111-102: FSC Application Data: SERVOCYLINDER,AUTOMATIC FLIGHT CONTROL SYSTEM,AIRCRAFT; Surface Treatment Document and Classification: SS8435 FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE; Casehardening Indicator: NOT CASEHARDENED; Surface Treatment: PASSIVATE. 5 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.