The Spring,helical,extension, cataloged under National Stock Number 5360-01-498-9193, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-01-498-9193 |
| Primary Part Number | MHC175 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| End Style | LONG ROUND HOOK BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.440 INCHES MINIMUM AND 0.560 INCHES MAXIMUM BOTH ENDS IN |
| Spring Free Length | 9.440 INCHES MINIMUM AND 9.560 INCHES MAXIMUM IN |
| Spring Deflection Rate | 2.275 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 0.878 INCHES MINIMUM AND 0.998 INCHES MAXIMUM BOTH ENDS IN |
| Coil Helix Direction | LEFT-HAND OR RIGHT-HAND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hook Radius | 0.195 INCHES MINIMUM AND 0.255 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 |
|---|---|
| CD514 | Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc (USA) |
| MHC175 | Isotta Fraschini Motori Spa (ITA) |
| MHC175 PRIMARY | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am (USA) |
| Reference | Meaning |
|---|---|
| MHC531 PC 6 | D/9 Drawing number reference only Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am |
NSN 5360-01-498-9193 is a Spring,helical,extension, manufactured by Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-498-9193 has 3 manufacturer part numbers on file: CD514 (Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc), MHC175 (Isotta Fraschini Motori Spa), MHC175 (Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-620-1250. Verify interchangeability with system specifications before substitution.
Key specifications for MHC175: Spring Free Outside Diameter: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; End Style: LONG ROUND HOOK BOTH ENDS; Style Designator: CYLINDRICAL; Opening Width: 0.440 INCHES MINIMUM AND 0.560 INCHES MAXIMUM BOTH ENDS IN. 10 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.