Where to find this brake fitting?

[ckid]

I just rebuilt my master cylinder and airpack. Apparently I've lost the fitting that screws into the rear of the master cylinder to attach the brake line (not the flare nut, but the fitting the flare nut screws into).

I have the nsn: 4730-00-591-5134. Problem is I can't find anything that matches it, only fittings that match one end or the other. Local shops just look at me like a three headed monkey.

Can anyone point me in the right direction?

 

[ldmack3]

I feel your pain. When I replaced my MC that fitting leaked upon reassembly. Never found one. All the parts cross reference companies will quote you only if you are a company. Here is one that has a minimum order of 1, but I'm not a company. If I could I would buy several.
10937981 | ADAPTER, STRAIGHT, TUBE TO BOSS | Aircraft products | ADAPTER-STRAIGHT-TUBE-TO-BOSS | 5805346 (e-aircraftsupply.com)

Let us know of you find a source.

Good luck

 

[davidb56]

Did you try online parts? https://www.wilwood.com/LineKits/LineKits2#mcf

 

[ckid]

Hmm...

@ldmack3, that doesn't sound promising. But, looking at the link @davidb56 posted, this might be the right thing?

Wilwood Disc Brakes

Flexline No: 220-8574, flexline, flex line, flexline kits, brake line, stainless steel brake lines, stainless brake lines, line fittings, inlet, outlet, inlet angle, outlet angle,

www.wilwood.com

 

[frank8003]

part target says

https://www.parttarget.com/4730-00-591-5134_4730005915134_10937981.html/-5e64dddd-c2fd-4305-9979-1078e833f9c3?searchtext=005915134&searchoption=nsn&originalsearchtext=4730-00-591-5134

adapter straight tube to boss part 109737981

https://www.parttarget.com/4730-00-591-5134_4730005915134_10937981.html/-5e64dddd-c2fd-4305-9979-1078e833f9c3?searchtext=10937981&searchoption=sku&originalsearchtext=10937981

4730-00-591-5134 An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. See also COUPLING, TUBE and NIPPLE, TUBE.

Part Alternates: 10937981, 4730-00-591-5134, 00-591-5134, 4730005915134, 005915134

I did not find one for sale but why not write to peashooter. I bet peashooter hassome for sale.

 

[ckid]

Thanks @frank8003 . That's the part number and NSN I found as well. Asked local shops about it and got a blank stare. Not a bad idea to message peashooter though. I'll do that. Thanks!

 

[frank8003]

Thanks @frank8003 . That's the part number and NSN I found as well. Asked local shops about it and got a blank stare. Not a bad idea to message peashooter though. I'll do that. Thanks!

brake line fittings

I am replacing the brake lines on my m35a2. however I lost the fittings that go on the master cylinder and air pack to accept the flared brake line fittings. I think the NSN is 4730-00-278-8873 or 4730-00-591-5134 based on the TM for parts, but I dont know what the specifications ware for it...

www.steelsoldiers.com

 

[ldmack3]

Compare to specs n that part to the NSN info in part target. Summit has that pn

WIL-220-8574

 

[topo]

I have bought brake fitting from Memphis Equipment they will know exactly what you are talking about .

 

[ckid]

Thanks @topo . I'll give them a call on Monday and see what they have.

 

[Guyfang]

Tech data for that NSN. Might help when asking for the part.

	THREAD CLASS	2A 2ND END
	THREAD CLASS	2B 1ST END
	CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) 2ND END
	CONNECTION STYLE	INVERTED FLARE (TUBE) 1ST END
	CONNECTION TYPE	THREADED EXTERNAL BOSS 2ND END
	CONNECTION TYPE	THREADED INTERNAL TUBE 1ST END
	NOMINAL THREAD SIZE	0 1/2 INCHES ALL ENDS
	SEAT ANGLE	42 DEGREES 1ST END
	NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0 313/1000 INCHES 1ST END
	NOMINAL OVERALL LENGTH	0 123/125 INCHES
	SPECIAL FEATURES	FINISH FOR STEEL ONLY COPPER PLATE
	MATERIAL	STEEL OVERALL OR COPPER ALLOY OVERALL
	MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-633 FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-626 COND 1/2 HARD COMP 22 FED SPEC 2ND MATERIAL RESPONSE OVERALL
	THREAD SERIES DESIGNATOR	UNF ALL ENDS

 

[ckid]

Thanks @Guyfang . Looks like the wilwood part I found earlier is not a match. It lists the male threads as the inverted flare, not the female as needed.

 

[Mullaney]

I have bought brake fitting from Memphis Equipment they will know exactly what you are talking about .

.
Don't forget to get the copper washer that goes onto the threaded part - so you don't have a leak!
It is a soft copper washer. Crushes just a little and makes you "drip free".

 

[BEASTMASTER]

did u try WHITE OWL in knston , nc. they got quite an inventory george &stephan are pretty good at helping u.

 

[ckid]

@Mullaney , yes sir, have the washers. Deuce was missing both of them when I brought it home.

@BEASTMASTER , I haven't tried white owl. Just figured out I was missing the thing last night. Had hoped I'd find something local this weekend but to such luck. I'll be making some phone calls on Monday.

Sucks... Brake system is completely rebuilt- wheel cylinders, lines, airpack, master, and new remote reservoir. But can't make it go for one dang fitting

 

[ldmack3]

Did you ever find the fitting? I'll be going to split system and will need some.
Perhaps use something as an adapter then a fitting that fits the line?

 

[ckid]

I gave Big Mike a shout and he pulled a used but good one off a parts truck for me. He did say he might be able to track down some NOS ones, but it might take a bit of time. I'd give him a call and see what he can find.