The Spring,helical,torsion, cataloged under National Stock Number 5360-00-563-9883, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5360-00-563-9883 |
| Primary Part Number | S1620-65210-1 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| End Style | MACHINE LOOP END SECOND END |
| End Style | STRAIGHT BEND END (RIGHT) FIRST END |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 0.375 INCHES NOMINAL IN |
| Inside Diameter | 0.531 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| End Length From First Bend to Second Bend or End | 0.313 INCHES NOMINAL OVERALL IN |
| Coil Quantity | 4-1/2 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| End Length From Second Bend to Third Bend or End | 0.188 INCHES NOMINAL OVERALL IN |
| End Angular Relationship | ENDS PARALLEL ONE TO OTHER |
| Hook Radius | 0.063 INCHES NOMINAL OVERALL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S1620-65210-1 | Rotair Aerospace Corp (USA) |
| S1620-65210-1 | Airbus Deutschland Gmbh -Werk Bremen- (DEU) |
| S1620-65210-1 | Matthew Warren, Inc Dba Atlantic Spring Div Atlantic Spring Division (USA) |
| S1620-65210-1 | Compair Drucklufttechnik Gmbh (DEU) |
| S1620-65210-1 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| S1620-65210-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5360-00-563-9883 is a Spring,helical,torsion, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-563-9883 has 5 manufacturer part numbers on file: S1620-65210-1 (Rotair Aerospace Corp), S1620-65210-1 (Airbus Deutschland Gmbh -Werk Bremen-), S1620-65210-1 (Matthew Warren, Inc Dba Atlantic Spring Div Atlantic Spring Division), S1620-65210-1 (Compair Drucklufttechnik Gmbh), S1620-65210-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S1620-65210-1: End Style: MACHINE LOOP END SECOND END; End Style: STRAIGHT BEND END (RIGHT) FIRST END; Style Designator: SINGLE TORSION LEFT HAND; Spring Free Length: 0.375 INCHES NOMINAL IN. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.