Description
Mechanical spring or diaphragm supplied as VG20 Spring PN: 391-3581-608 (PN HP-D0236). Springs and diaphragms store and release mechanical energy in defined load–deflection curves. Helical compression and extension springs are used in brakes, clutches, valve assemblies, and overload protection; Belleville (disc) springs maintain bolt preload and clamping force; diaphragms separate fluid chambers and transmit pressure without seal friction. Confirm free length, rate, wire/disc dimensions, and material grade against the OEM service drawing. Replace springs in matched sets where the OEM specifies. Part No. HP-D0236. For confirmation of fit, lead time, and pricing, contact our team via Add to Quote or [email protected].
⚠ System-generated illustration. This image is an AI-generated drawing and does not reflect the exact item being offered. Please contact customer support for actual product images.
OEM / Specifications
- Manufacturer: Parker Hannifin
- Product: Centering Spring / Compression Helical Spring
- Series: VG20
- Manufacturer part no.: 391-3581-608
- Type: compression helical spring
- Nsn: 5360-01-583-6351
- Fsc: 5360 Coil Flat Leaf and Wire Springs
Manufacturer information / datasheet:
- hymatik.com/media/45702/bul-hy14-2004-m1-va_vg-dir-cntrl-vlvs-svc_03-2
- www.psifp.com/itemdetail/391-3581-608
- nationalstocknumber.info/part-number/3913581608_01-583-6351
Specifications from manufacturer/distributor sources (checked 2026-10-17). Buyers should verify before use.






