The Spring,helical,compression, cataloged under National Stock Number 5360-01-050-9521, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-01-050-9521 |
| Primary Part Number | 2721137 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.275 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ES-F59-2,PARKER HANNIFIN CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Load Rating | 0.485 POUNDS NOMINAL LBS |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.100 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS 5699 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.270 INCHES NOMINAL IN |
| Spring Deflection Rate | 4.410 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.235 INCHES NOMINAL IN |
| Spring Length Under Load | 0.160 INCHES NOMINAL IN |
| Coil Quantity | 5 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | NICKEL ALLOY X-750 OVERALL |
| 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 |
|---|---|
| 2721137 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 2721137 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-01-050-9521 is a Spring,helical,compression, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-050-9521 has 1 manufacturer part number on file: 2721137 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for 2721137: Spring Free Outside Diameter: 0.275 INCHES NOMINAL IN; Surface Treatment Document and Classification: ES-F59-2,PARKER HANNIFIN CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL; Load Rating: 0.485 POUNDS NOMINAL LBS; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS. 15 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.