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M7/M8 Grenade Launcher Retainer Springs in factory wrap?


strand-holm

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strand-holm

I found two Retainer Springs in their original factory wrap. The printing says:

"2 Retainer Springs, A7, 310,031" and on the lower, left corner of the envelope "0311, 31".

Can anybody help on the name of the manufacturer of the envelope w. spri gs?

Thank you, all....photo attached.

20230626_130246.jpg

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Replacement springs, the packages that came with boxes normally are always labeled with the makers or the company providing the launcher.  They probably subbed out the springs to someone like Wallace Barnes, etc.  yours could be foreign made because of the comma’s.  

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strand-holm

Thank you CCyooper. I have also the envelopes labeled with makers, so replacement springs sounds plausible.

I am not familiar to Wallace Barnes (?) - do you know how to interpret the comma separated A7, 310, 031 marking?

Best, Anders

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Wallace Barnes was a spring maker.  They made lots of springs for the government, ie., springs for the BAR, oprod spring for the Garand, etc.   Yes, the number is the drawing number for the spring.  The comma’s again make me believe the package is foreign, I’ve attached a picture from the SNL for your view with the spring in view. 

IMG_1876.jpeg

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strand-holm

Thank you for taking the time to provide me this valuable information.

I am very grateful.

I assume the SNL is a Tech. Bulletin or manual?

I will try to locate a copy but I need more detailled info on the SNL. The picture is invaluable. Thanks a lot!

 

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Yes, the SNL’s are very informative descriptors for every piece of government equipment, vehicle, or weapons system. They break down the item into parts and units of issue and provide pictures. Here is the one for launchers. There were different levels of detail based upon level of issue and updated as needed. RegardsIMG_1877.jpeg.929d2edc4a7c815f1a4bf78a4aeec021.jpeggards 

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strand-holm

Again and again, thank you for sharing!

I will try to find an original copy, even if it is difficult...

Have a great weekend, Ccyooper 👍

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  • 4 weeks later...
strand-holm

Hello again Ccyooper.
I realize it is very dfficult, almost impossible to find an original specimen of the Army Services Force Catalog, ORD 9 SNL B-39, List of all Parts Grenade Launcher, M1, M2 M7 and M8, August 1944, you show me in your picture.

I would love to get access to the infformation in this ORD 9 SNL B-39.

Is it possible to find a copy/repro of this catalog.

Thank you for your time.

Regards,

Anders

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Here are a set of springs that were originally marked IBM but were lined-out and remarked Hawley Smith Machine. They came in an M7 box that was also lined out. The box is the bottom one in the 2nd pictureLineOutSprings.jpg.2c863490a239288147a89c3cc4e29efd.jpg

17.jpg

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strand-holm

Thank you for sharing.

It is an impressive collection you have and the boxes are great, in particular. They are not easy to find.

Do you have the entire content for all boxes shown in your photos?

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On 7/31/2023 at 10:13 PM, strand-holm said:

Thank you for sharing.

It is an impressive collection you have and the boxes are great, in particular. They are not easy to find.

Do you have the entire content for all boxes shown in your photos?

 

Here are some pics of the items that were in the boxes when I got them. The other two boxes had nothing but the launcher in them. The 3rd pic is of some other spare retainer spring packages I have.

Early M7 Box.jpg

Line-Out Box.jpg

M7 Springs.jpg

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strand-holm

Thank you for those additional pics. I have not seen the retainer springs in those separate envelopes before. (1950's). So new to me and interedting.

The box marked "One Launcher Grenade M7" seems to have no contractor name. Who is the contractor?

Also the instruction on paper is great. Did this paper come with all M7XX models?

 

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  • 3 weeks later...

The early box and instructions were provided with the Knapp-Monarch launcher. Note the instruction still has the screw nut retention spring as well as the early type valve. 

IMG_5457.jpeg

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