dca, guys... there is burr under my saddle RE this discussion.
As a fastening veteran since ~1985, I am aware of elements that would be relevant to this discussion... and have asked a few basic questions about... but I NOW believe there is a LOT you are not able-to, or willing-to, tell-us...
Maybe some useful info in AIAA or SAE or documents/reports/standards...
SAE AIRxxx, ARPxxx, ARPxx, text books, published papers, etc. Example...
SAE AS681 Gas Turbine Engine Performance Presentation for Computer Programs
SAE AIR1419 Inlet Total-Pressure Distortion Considerations for Gas-Turbine...
dc...
WHAT TYPE OF 'BLIND RIVET ' are you actually considering/contemplating with this question...???
Does the BR conform to a procurement spec? shear-head? tension Head? alloy? formed-tail [bulb] style?
IF you have a genuine tensile load to worry about... perhaps you should consider a high...
oz... WHY are you unable to obtain sufficient [any?] Helium for testing? It is not cheap... but it is available...
Also... FYI... for what it's worth... stumble-over... NASA-STD-7012A LEAK TEST REQUIREMENTS
Various gases and fluids mentioned.. and there is appears to be [possible] conversion...
None of this thread makes sense...
SPS fastener manufacturing has NO relationship to manufacture of epoxy primers. SWC's post clarified this basic truth...
The Issue from Goat... last sentence... "Any suggested alternatives? It is used for both joining and sealing."... implies that they...
Blue Origin 'New Sheppard' flights are manned suborbital... and since the PAX have NO crew function the FAA will no-longer award official astronaut wings... Blue Origin wings only.
Blue Origin is principally owned by Jeff Bezos... and New Sheppard is 100% private/commercial venture... paying...
G123... Landing gear systems hydraulics are designed to 'work' with landing gear installed. There are 'iron-bird' mechanical test set-ups for 'whole system testing'... or 'bench tests' for every component of the hydraulics systems for the gear...
'Swinging the gear' while on jacks is a fairly...
d... I could suggest a variety of male replacement fasteners... problem as I see it... your 'old design' seems 'comfy' with the NAS517 style inexpensive, readily available flush head bolts ['screws' generally have most of the shank fully threaded]. In this case the NAS517 has a large 100Deg...
Tug... I used to live near Vandenberg in the early 1980s and had a few friends working there. OH... and when I was a 'runny nosed-Air Force brat'... my USAF dad was deep into the Thor missile program [training missilemen to maintain/launch Thor] in the 1950s.
At VAFB, weather permitting, there...
Hmmmmm... why is this nomination for NASA administrator... and his stated goals... not so much of a surprise...?
NASA Nominee Isaacman Says Plans For Mars And The Moon Are In Play
https://www.avweb.com/aviation-news/parallel-moon-and-mars-programs-are-plausible-isaacman/
FYI... NAS517 is an antique cross-recess flush-tension head [XR-FTH] long-thread [LT] low alloy steel [LAS] bolt [1950s]
Obviously You have a need for a structural XR-FTH-LT-LAS Bolt... why not a newer spec fastener? Is this for homebuilts?
Oh Well
One quick point... 160-to-180-KSI is the HEAT TREAT of the alloy steel... not necessarily the tensile strength rating for the entire fastener
Refer to the specifications for 'spec min required tensile/shear strength'. A LOT of elements go into the static and fatigue strength of fasteners.
Ahhhhh... a single recent issue of CCC trying to control SpaceX operations at VAFB for COMMERCIAL ONLY use. CCC has no say-so for the MIL usage/tempo by Space X
Tug...
WWII was 'won' at a terrible price. The captured technology [documents/knowledge] and experienced-personnel... scientists, engineers, techs, etc [aero, rocket, weapons, etc]... were never going to be simply discarded... 'because' of being a Nazi rank-and-file party member, ONLY... unless...
/NOTE/ Before I give You the technical answer... here is a practical observation.
Have your vendor check the material certification-paperwork and the mil-printed-markings on the raw material. Often a OEM will manufacture a product to a high standard specification then cross-qualify all other...
