Aircraft Spruce Australia
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Instrument Mounting Nuts
| Obsolete Part No. | Our Part No. | NAS Parts No. | Instrument Thickness | Price | Buy |
|---|---|---|---|---|---|
| A8938-632-493 | MS33737-9C | 487-13 | .062 | $2.18 | |
| A8939-632-493 | MS33737-10C | 487-14 | .091 | $3.91 | |
| A6939-632-493 | MS33737-11C | 487-15 | .125 | $2.60 | |
| A8940-632-493 | MS33737-12C | 487-16 | .187 | $7.15 | |
| A8941-632-493 | MS33737-13C | 487-17 | .250 | $3.29 | |
| A8942-632-493 | MS33737-14C | 487-18 | .313 | $3.14 | |
| A8943-632-493 | MS33737-15C | 487-20 | .375 | $2.54 | |
| A8944-632-493 | MS33737-16C | 487-21 | Over .375 | $4.24 |
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Overview
|
Cage type. Permit mounting of aircraft instruments from
the front of the panel. No charge in panel or instrument design required. Non-magnetic (speed nut is brass; cage is phosphor bronze). Conform to MIL-N-3336. Cage is easily compressed with finger-pressure to allow insertion of legs into clearance holes. When fully inserted and pressure is released, legs spring apart; retain SPEED NUT in screw-receiving position. Turned down corners hold firm against force of in sert ing screw and screw-tightening torque. All instrument mounting nuts listed below take a 6-32 machine screw. Additional Info: the thread size is the same on each nut, but the instrument bezel thickness can be different per gauge. They are ordered by the back bezel thickness. They are inserted from the back, and they have ears pointing out that slide into a groove between the front and back bezel to stay in place. |
Reviews
Verified Purchase
Instrument Mounting Nut A8944-632-493
Great little item
Verified Purchase
Instrument Mounting Nut A8941-632-493
What I needed when I needed it
Verified Purchase
Instrument Mounting Nut A8944-632-493
This p/n was supposed to be the correct fastener for a Mid Continent turn coordinator per the notes on the web site for the turn coordinator. Its not. Its too short.
Verified Purchase
Instrument Mounting Nut A8940-632-493
Just what I needed, especially the oversized ones. They don’t have the bent ends. Instead they have little burs that grip the inside of the hole. Great for old instruments that have thicker mounts.
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Instrument Mounting Nut A8944-632-493
Grasshopper nuts, some lacing cord tied through the nut and around the instrument will keep it from falling out and being lost behind the panel.
Verified Purchase
Instrument Mounting Nut A8944-632-493
No screws included?? Had to get screws, and run a tap on them all to get them to work. Would have been really helpfull if the screws were included!
Verified Purchase
Instrument Mounting Nut A8940-632-493
works as intended. nothing better for the purpose.
Verified Purchase
Instrument Mounting Nut A8944-632-493
Verified Purchase
Instrument Mounting Nut A8943-632-493
Verified Purchase
Instrument Mounting Nut A8944-632-493
Q&A
Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
