The Spring,helical,compression, cataloged under National Stock Number 5360-00-490-4576, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-490-4576 |
| Primary Part Number | 1816522 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.753 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED BOTH ENDS |
| Style Designator | CYLINDRICAL CONVEX END |
| Spring Free Length | 3.750 INCHES NOMINAL IN |
| Spring Deflection Rate | 6.150 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.265 INCHES NOMINAL IN |
| Surface Treatment | OXIDE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL 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 |
|---|---|
| 1816522 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5360-00-490-4576 is a Spring,helical,compression, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-490-4576 has 1 manufacturer part number on file: 1816522 (Northrop Grumman Systems Corporation).
Key specifications for 1816522: Spring Free Outside Diameter: 0.753 INCHES NOMINAL IN; End Style: SPRING END,SQUARED BOTH ENDS; Style Designator: CYLINDRICAL CONVEX END; Spring Free Length: 3.750 INCHES NOMINAL IN. 9 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.