The Spring,helical,extension, cataloged under National Stock Number 5360-00-418-4977, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Acron Aviation, Inc.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-418-4977 |
| Primary Part Number | 568-1922-01 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Acron Aviation, Inc. |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.230 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN |
| Load Rating | 2.80 POUNDS MINIMUM AND 3.80 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W423,FORM 1,COND B FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Spring Free Length | 1.226 INCHES MINIMUM AND 1.295 INCHES MAXIMUM IN |
| Coil to Hook Inside Length | 0.173 INCHES MINIMUM AND 0.183 INCHES MAXIMUM BOTH ENDS IN |
| Inside Diameter | 0.173 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN |
| Spring Length Under Load | 2.209 INCHES NOMINAL IN |
| Coil Quantity | 30-1/2 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL |
| Hook Radius | 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM BOTH ENDS IN |
| 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 |
|---|---|
| 568-1922-01 PRIMARY | Acron Aviation, Inc. (USA) |
NSN 5360-00-418-4977 is a Spring,helical,extension, manufactured by Acron Aviation, Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-418-4977 has 1 manufacturer part number on file: 568-1922-01 (Acron Aviation, Inc.).
Key specifications for 568-1922-01: Spring Free Outside Diameter: 0.230 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN; Load Rating: 2.80 POUNDS MINIMUM AND 3.80 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 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.