We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small metal nosepiece with threaded opening, silver finish

SPEEDAIRE

SPEEDAIRE 42VA59 Nosepiece 5/16" 7.8mm

SKU CH-QHHW-5K5HZ

A 5/16 inch nosepiece connects compatible Speedaire tools for air compression tasks

  • 5/16" nosepiece fits 7.8 mm air lines
  • Compatible with Speedaire SG-0450R equipment
  • Grainger cross-reference 3CRH7B simplifies ordering
  • New condition ensures reliable sealing performance
  • Proposition 65 warning disclosed for safety awareness

SPEEDAIRE 42VA59 Nosepiece 5/16" 7.8mm

The SPEEDAIRE 42VA59 is a replacement nosepiece designed for compatible air tools. It fits equipment requiring a 5/16 inch or 7.8 mm connection point. This new component serves technicians maintaining pneumatic systems in automotive or industrial settings. It is supplied as a direct replacement part from the manufacturer.

Fits compatible Speedaire equipment

This nosepiece connects to tools matched with manufacturer part number SG-0450R and Grainger part number 3CRH7B. It integrates into existing assemblies without requiring series-specific alignment. The part frees up workflow by restoring function to worn or damaged tool ends. No additional adapters are needed for the listed compatible models.

California Proposition 65 compliance noted

The product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Normal use involves standard pneumatic pressure and airflow through the 5/16 inch bore. No power draw or noise specifications apply to this passive fitting. Handle according to workplace safety guidelines for the listed materials.

Highlights

  • 5/16" nosepiece fits 7.8 mm air lines
  • Compatible with Speedaire SG-0450R equipment
  • Grainger cross-reference 3CRH7B simplifies ordering
  • New condition ensures reliable sealing performance
  • Proposition 65 warning disclosed for safety awareness

Specifications

BrandSPEEDAIRE

Questions about this item

How quickly does the 5/16 inch nosepiece wear under continuous air-tool use?

The SPEEDAIRE 42VA59 nosepiece is a consumable fitting; its service life depends on air pressure, abrasive content and duty cycle rather than a published hour rating.

Does the nosepiece become hot or vibrate during extended compressor runs?

The nosepiece itself does not generate heat or noise; any temperature rise or vibration comes from the upstream compressor and air line, not from this fitting.

Which hose or coupler thread must I already have to fit the 7.8 mm nosepiece?

The 5/16 inch nosepiece is designed for Speedaire SG-0450R series tools and matches Grainger part 3CRH7B, so the mating hose or coupler must share that thread specification.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.