Description
Parker 6-6 MHN-S Hex Nipple, Carbon Steel, 3/8 in — BOLTON SKU 53447.
About the Parker 6-6 MHN-S Hex Nipple Carbon
The 6-6 MHN-S is a male hex nipple from Parker’s instrumentation pipe fitting range, used to join two female NPT ports directly without an intermediate length of pipe. Both ends carry a 3/8 in NPT male taper thread, and the central hex flat is 3/4 in across, giving a spanner purchase for controlled make-up torque. The body is carbon steel with a zinc-plated finish for handling and storage protection, and the fitting carries a maximum operating pressure rating of 7,600 psi. In the Parker part-number convention the leading 6-6 identifies the two 3/8 in port sizes, MHN identifies the male hex nipple form, and the S suffix identifies the carbon steel material — a stainless variant of the same geometry is offered separately as 6-6 MHN-SS. Machined threads and a one-piece body keep the number of potential leak paths in an instrument line to a minimum.
Key specifications
| Attribute | Value |
|---|---|
| Fitting type | Male hex nipple |
| End connections | 3/8 in NPT male x 3/8 in NPT male |
| Material | Carbon steel, zinc plated |
| Hex size | 3/4 in |
| Maximum operating pressure | 7,600 psi |
Typical applications
A 3/8 in NPT double-male nipple of this kind is used to close the gap between two female-ported components — a gauge and a manifold, a valve and a bulkhead, a filter body and a tee — where the two items sit close enough that no pipe run is needed. The 7,600 psi carbon steel rating places it in high-pressure hydraulic and instrument-line service rather than low-pressure utility plumbing. It is a general-industrial fitting where carbon steel is acceptable and stainless corrosion resistance is not required.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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