The Spring,helical,extension, cataloged under National Stock Number 5360-01-540-3581, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-540-3581 |
| Primary Part Number | 200530548-01 |
| Item Name | Spring,helical,extension |
| 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 | 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| End Style | MACHINE LOOP BOTH ENDS |
| Criticality Code Justification | CXCY |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.280 INCHES NOMINAL OVERALL IN |
| Material Document and Classification | AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 5.650 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.860 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.626 INCHES NOMINAL IN |
| Stock Diameter | 0.187 INCHES NOMINAL IN |
| Coil Quantity | 20 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | LEFT-HAND OR RIGHT-HAND |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 200530548-01 | The Precision Coil Spring Company Dba Precision Coil Spring Co (USA) |
| Reference | Meaning |
|---|---|
| 200530548-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-540-3581 is a Spring,helical,extension, 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 5360-01-540-3581 has 1 manufacturer part number on file: 200530548-01 (The Precision Coil Spring Company Dba Precision Coil Spring Co).
Key specifications for 200530548-01: Spring Free Outside Diameter: 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; End Style: MACHINE LOOP BOTH ENDS; Criticality Code Justification: CXCY. 16 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.