The Spring,helical,extension, cataloged under National Stock Number 5360-00-571-0376, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-571-0376 |
| Primary Part Number | 20-68315-3 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.570 INCHES NOMINAL IN |
| End Style | REDUCED CENTER LOOP FIRST END |
| End Style | REDUCED CENTER LOOP SECOND END |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 3.940 INCHES NOMINAL IN |
| Coil to Hook Inside Length | 0.120 INCHES NOMINAL FIRST END IN |
| Coil to Hook Inside Length | 2.100 INCHES NOMINAL SECOND END IN |
| Inside Diameter | 1.370 INCHES NOMINAL IN |
| Coil Quantity | 10 |
| Coil Helix Direction | RIGHT-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 |
|---|---|
| 20-68315-3 PRIMARY | The Boeing Company Div Defense (USA) |
| 20-68315-3 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| 20-68315-3 | The Precision Coil Spring Company Dba Precision Coil Spring Co (USA) |
NSN 5360-00-571-0376 is a Spring,helical,extension, manufactured by The Boeing Company Div Defense, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-571-0376 has 3 manufacturer part numbers on file: 20-68315-3 (The Boeing Company Div Defense), 20-68315-3 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co), 20-68315-3 (The Precision Coil Spring Company Dba Precision Coil Spring Co).
Key specifications for 20-68315-3: Spring Free Outside Diameter: 1.570 INCHES NOMINAL IN; End Style: REDUCED CENTER LOOP FIRST END; End Style: REDUCED CENTER LOOP SECOND END; Design Type: CLOSED. 13 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.