The Spring,helical,extension, cataloged under National Stock Number 5360-01-129-0926, 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 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-129-0926 |
| Primary Part Number | 74A733603-2001 |
| 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 | 0.241 INCHES NOMINAL IN |
| Load Rating | 10.00 POUNDS NOMINAL LBS |
| End Style | DOBBY HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.620 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 2.472 INCHES NOMINAL IN |
| Inside Diameter | 0.158 INCHES NOMINAL IN |
| Spring Length Under Load | 2.790 INCHES NOMINAL IN |
| Coil Quantity | 19-3/4 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 631 OVERALL |
| Hook Radius | 0.080 INCHES NOMINAL 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 |
|---|---|
| 74A733603-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 3929AS817 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 10118163 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A733603-2001 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company |
NSN 5360-01-129-0926 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 5360-01-129-0926 has 2 manufacturer part numbers on file: 74A733603-2001 (The Boeing Company Div Defense), 3929AS817 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 74A733603-2001: Spring Free Outside Diameter: 0.241 INCHES NOMINAL IN; Load Rating: 10.00 POUNDS NOMINAL LBS; End Style: DOBBY HOOK BOTH ENDS; Design Type: CLOSED. 14 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.