The Spring,helical,extension, cataloged under National Stock Number 5360-01-449-6272, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Murphy & Read Spring Mfg Co Dba Murphy & Read Spring Manufacturing Co. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5360-01-449-6272 |
| Primary Part Number | MX049M04-E-SS |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Murphy & Read Spring Mfg Co Dba Murphy & Read Spring Manufacturing Co |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.492 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| Load Rating | 8.910 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.750 INCHES NOMINAL IN |
| Spring Deflection Rate | 3.780 POUNDS PER INCH MINIMUM AND 4.620 POUNDS PER INCH MAXIMUM LBS |
| Inside Diameter | 0.402 INCHES NOMINAL IN |
| Stock Diameter | 0.049 INCHES NOMINAL IN |
| Spring Length Under Load | 3.000 INCHES MAXIMUM IN |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Hook Radius | 0.402 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 |
|---|---|
| MX049M04-E-SS PRIMARY | Murphy & Read Spring Mfg Co Dba Murphy & Read Spring Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| 12981715 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 5360-01-449-6272 is a Spring,helical,extension, manufactured by Murphy & Read Spring Mfg Co Dba Murphy & Read Spring Manufacturing Co, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-449-6272 has 1 manufacturer part number on file: MX049M04-E-SS (Murphy & Read Spring Mfg Co Dba Murphy & Read Spring Manufacturing Co).
Key specifications for MX049M04-E-SS: Spring Free Outside Diameter: 0.492 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN; Load Rating: 8.910 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED 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.