The Spring,helical,torsion, cataloged under National Stock Number 5360-01-055-3518, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is The Precision Coil Spring Company Dba Precision Coil Spring Co. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-01-055-3518 |
| Primary Part Number | 16S209-7 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Precision Coil Spring Company Dba Precision Coil Spring Co |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.765 INCHES NOMINAL IN |
| End Style | ONE HOOK END OVERALL |
| End Length | 0.560 INCHES NOMINAL BOTH ENDS IN |
| Center Section Width | 1.080 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.080 INCHES NOMINAL IN |
| Coil Axis to Center Section Distance | 2.020 INCHES NOMINAL IN |
| Inside Diameter | 0.635 INCHES NOMINAL IN |
| Coil Quantity | 10.16 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Center Style | SQUARE TYPE |
| Material | STEEL COMP 631 OVERALL |
| End Angular Relationship | ENDS PARALLEL ONE TO OTHER |
| 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 |
|---|---|
| 16S209-7 | The Precision Coil Spring Company Dba Precision Coil Spring Co (USA) |
| 16S209-7 | Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc (USA) |
| 16S209-7 | Marvin Engineering Co, Inc (USA) |
| 16S209-7 | Titan Spring, Inc. Dba Titan Spring and Wire Products (USA) |
| Reference | Meaning |
|---|---|
| 16S209-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-055-3518 is a Spring,helical,torsion, manufactured by The Precision Coil Spring Company Dba Precision Coil Spring Co, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-055-3518 has 4 manufacturer part numbers on file: 16S209-7 (The Precision Coil Spring Company Dba Precision Coil Spring Co), 16S209-7 (Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc), 16S209-7 (Marvin Engineering Co, Inc), 16S209-7 (Titan Spring, Inc. Dba Titan Spring and Wire Products).
Key specifications for 16S209-7: Spring Free Outside Diameter: 0.765 INCHES NOMINAL IN; End Style: ONE HOOK END OVERALL; End Length: 0.560 INCHES NOMINAL BOTH ENDS IN; Center Section Width: 1.080 INCHES NOMINAL IN. 14 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.