The Spring,helical,extension, cataloged under National Stock Number 5360-00-066-6444, 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 20 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 | 5360-00-066-6444 |
| Primary Part Number | G102-568 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.562 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | GSS-8050,GRUMMAN AEROSPACE CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Load Rating | 50.000 POUNDS MINIMUM LBS |
| End Style | MACHINE LOOP BOTH ENDS |
| Design Type | MAINSPRING |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.085 INCHES NOMINAL FIRST END IN |
| Opening Width | 2.137 INCHES NOMINAL SECOND END IN |
| Material Document and Classification | ASTM A228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 7.165 INCHES MINIMUM AND 7.225 INCHES MAXIMUM IN |
| Spring Deflection Rate | 14.200 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.558 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 2.387 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 0.392 INCHES NOMINAL IN |
| Stock Diameter | 0.084 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Spring Length Under Load | 10.250 INCHES MINIMUM IN |
| Coil Quantity | 51 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 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 |
|---|---|
| G102-568 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5360-00-066-6444 is a Spring,helical,extension, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-066-6444 has 1 manufacturer part number on file: G102-568 (Northrop Grumman Systems Corporation).
Key specifications for G102-568: Spring Free Outside Diameter: 0.562 INCHES NOMINAL IN; Surface Treatment Document and Classification: GSS-8050,GRUMMAN AEROSPACE CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL; Load Rating: 50.000 POUNDS MINIMUM LBS; End Style: MACHINE LOOP BOTH ENDS. 20 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.