The Spring,helical,torsion, cataloged under National Stock Number 5360-00-018-5028, 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 Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-00-018-5028 |
| Primary Part Number | 4-82018-1 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.282 INCHES NOMINAL IN |
| End Style | STRAIGHT BEND END (RIGHT) OVERALL |
| End Length | 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM BOTH ENDS IN |
| Center Section Width | 0.184 INCHES NOMINAL IN |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | AMS 5673 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Spring Free Length | 0.310 INCHES NOMINAL IN |
| Coil Axis to Center Section Distance | 0.830 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN |
| Inside Diameter | 0.218 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.100 INCHES MINIMUM AND 0.140 INCHES MAXIMUM OVERALL IN |
| Coil Quantity | 4-21/32 |
| Center Loop Radius | 0.060 INCHES NOMINAL IN |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Center Style | U TYPE |
| Material | STEEL OVERALL |
| End Angular Relationship | ENDS ANGLED 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 |
|---|---|
| 4-82018-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 4-82018-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 5360-00-018-5028 is a Spring,helical,torsion, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-018-5028 has 1 manufacturer part number on file: 4-82018-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 4-82018-1: Spring Free Outside Diameter: 0.282 INCHES NOMINAL IN; End Style: STRAIGHT BEND END (RIGHT) OVERALL; End Length: 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM BOTH ENDS IN; Center Section Width: 0.184 INCHES NOMINAL IN. 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.