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Author
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Topic: Space Shuttle bolt nomenclature
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JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-14-2020 06:21 AM
   
Does anyone have a listing of the bolts used one the shuttle? To be a little more specific, North American Rockwell with the/during the year of 1972? Thanks! |
space1
Member Posts: 863
From: Danville, Ohio
Registered: Dec 2002
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posted 04-14-2020 06:59 AM
It would be much easier to ask if a specific type of bolt might have been used on the shuttle. There were many types used. Some had Rockwell specification numbers like MD111-XXXX or MD112-XXXX. Others were standard aerospace bolts like NAS1100-XXXX. |
SpaceAholic
Member Posts: 4502
From: Sierra Vista, Arizona
Registered: Nov 1999
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posted 04-14-2020 07:14 AM
Of course the original poster is talking 1972 at which time Rockwell only had a wood/plastic mock-up so aerospace grade fasteners may not have been used. But agree the general nature of his/her inquiry is so non-specific that it isnt answerable. |
thisismills
Member Posts: 299
From: Michigan
Registered: Mar 2012
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posted 04-14-2020 08:19 AM
Have a feeling this piece of hardware (eBay 193414332083) is the origin of the line of questioning... but just a guess. |
Ken Havekotte
Member Posts: 2988
From: Merritt Island, Florida, Brevard
Registered: Mar 2001
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posted 04-14-2020 08:46 AM
The bolt picture by Jeff above could pertain to a Rockwell S-II rocket stage, but without further checking on it, might be the S-II program and/or related to their role in the Apollo/Saturn project (perhaps Scott can answer that question for us). The bolt is quite similar, though, to a lot of the units that I have from a shuttle orbiter, also built by Rockwell. |
JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-14-2020 09:03 AM
quote:
Originally posted by thisismills:
Have a feeling this piece of hardware (eBay 193414332083) is the origin of the line of questioning... but just a guess.
You are correct, this is one of the bolts I purchased.
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JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-14-2020 09:23 AM
quote:
Originally posted by Ken Havekotte:
The bolt is quite similar, though, to a lot of the units that I have from a shuttle orbiter, also built by Rockwell.
Here is the nomenclature on the bolt: Nomenclature on other shuttle bolts, relating to the SSME and SPACEHAB, have the following: - SPS 02 EWB 0420-5-19 (possibly SSME related)
- SPS 01 EWB 0420-5-19 (SSME related)
- XXX XX EWB 0420 8-20 (SPACEHAB)
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SpaceAholic
Member Posts: 4502
From: Sierra Vista, Arizona
Registered: Nov 1999
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posted 04-14-2020 09:44 AM
The nomenclature is a part number (Standard Pressed Steel) who manufactured that fastener based on National Aerospace Standard. The faster has and continues to be used on a variety of applications non unique to either North American or "Space". Even within NAR, these type fasteners were employed on GSE and many other projects concurrently underway within the company; its application is not unique to a given program. A review of parts callout for the F-1/J-2/RS-25 can rapidly determine if this fastener was also used on any of those propulsion engine; if those turn up negative then you would have a challenging task of coorelating that 10 dollar purchase with everything else in NARs portfolio
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JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-14-2020 09:54 AM
Thanks for the lead! Do you have a link to the NAR or a catalog of parts/components can be found? |
Ken Havekotte
Member Posts: 2988
From: Merritt Island, Florida, Brevard
Registered: Mar 2001
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posted 04-14-2020 10:00 AM
Appreciate the info JBoe, but I am getting more confused. Is anyone saying that the displayed bolt by Jeff is of shuttle origin?Even though with a SPS number, I don't think the bolt could be shuttle orbiter related if in 1972, correct? Off hand, the shuttle orbiter's main engine prime contract number is/was NAS10-109xx. For instance, the SSME gimbal bolts are labeled as SPS-06/MD111-4035-xxxx. |
JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-14-2020 10:06 AM
Ken, the seller had listed and made reference to shuttle program. If the bolt is Apollo or Apollo-era that would be great to know as well. I was hoping that it was shuttle-era, that was the goal anyways.Doing a quick search regarding North American Rockwell Corporation, Space Division, with the inspection date, 25 July 1972, on the bolt came back with an article saying the company won the contract to build the shuttle. The date of the article was three days after the inspection date, 28 July 1972. Additionally, the company's Rocketdyne Division was awarded the contract in August 1971 to build the SSME. A timeline can be found here. |
SpaceAholic
Member Posts: 4502
From: Sierra Vista, Arizona
Registered: Nov 1999
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posted 04-14-2020 10:48 AM
quote:
Originally posted by Ken Havekotte:
Is anyone saying that the displayed bolt by Jeff is of shuttle origin?
Only the seller suggested that. The Block I RS-25 was developed in 72 however (which may only be coincidental). quote:
Even though with a SPS number, I don't think the bolt could be shuttle orbiter related if in 1972, correct?
NAR used SPS supplied fasteners on its programs (as evidenced by the tag) - its not unlikely that fasteners from SPS were incorporated into the Shuttle. quote:
Off hand, the shuttle orbiter's main engine prime contract number is/was NAS10-109xx. For instance, the SSME gimbal bolts are labeled as SPS-06/MD111-4035-xxxx.
Apples to oranges - NASA Contract numbers are distinct from manufacturer (SPS as an example) drawing/part numbers. The "NAS" prefixed on the tag is associated with a commercial industry standard, not a NASA contract number. |
JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-14-2020 11:20 AM
Thanks guys for the help and direction, it's greatly appreciated! I know there's a long ways to go to make a firm determination. I also know that there's a lot of cross over between programs, Apollo to Shuttle; applications, SSME to fastening other components together; and as well as platforms these bolts were used on, from combat aircraft to spacecraft.I guess even saying it was used or to be used in spacecraft may be stretching it since you can search NAS1133E35 and that part is available in the aviation industry. |
Ken Havekotte
Member Posts: 2988
From: Merritt Island, Florida, Brevard
Registered: Mar 2001
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posted 04-14-2020 11:26 AM
That helps, Scott, but I didn't know that the shuttle SSME contract was first awarded in August 1971. I was under the impression that Congress approved the NASA shuttle program in April 1972 with no prior contractor studies, or I mean to say, hardware work projects yet approved.The SSME gimbal bolts and nuts that I have were composed on a joint NASA and LSOC inventory schedule of "1820 Flight Hardware" submitted by KSC for a prime government contract. |
JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-15-2020 06:40 AM
Ken, thanks for the information pertaining to "1820 Flight Hardware." I searched in Google and NASA NTRS, but came up empty. I mentioned that the bolt is also used in the aviation industry and tried to get datasheets, but what I'm finding is that the bolt may be obsolete. quote:
Originally posted by Ken Havekotte:
I didn't know that the shuttle SSME contract was first awarded in August 1971.
Given that the bolt could have been carried over to the shuttle program, using the inspection date it could be possible the bolt was a supply from the Apollo 17 to Skylab (SL-1) timeframe. |
Jim Behling
Member Posts: 1493
From: Cape Canaveral, FL
Registered: Mar 2010
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posted 04-15-2020 08:01 AM
There is no way to confirm if this bolt was used in any installation. You would need the actual procedure that was used to perform the installation and the data sheet that shows the lot number of the bolts. That will tell you what system this lot of bolts were used for. But it doesn't tell you what this specific bolt was used for or if it was used at all.To know if certain bolts were used on certain systems would require a drawing by drawing review of parts lists. There would not be an over arching summary list of piece parts. |
Ken Havekotte
Member Posts: 2988
From: Merritt Island, Florida, Brevard
Registered: Mar 2001
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posted 04-15-2020 08:31 AM
That was my original intention, JBoe, in thinking the bolt was possibly a spare if needed for the Skylab/ASTP programs.And yes, Jim, I certainly agree with you. There would be no way, from just seeing the tag, in trying to determine if that same bolt had been used anywhere. But it did come with a North American Rockwell "Space Division" tag, which I would think more likely would apply to one of their major aerospace contract programs such as the S-II rocket stage and the command/service modules, and possibly even a few other of their aerospace hardware areas. |
oly
Member Posts: 976
From: Perth, Western Australia
Registered: Apr 2015
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posted 04-15-2020 10:03 AM
A quick check of that part number against an aerospace hardware database returned this result:NAS1133E35
NSN 5305-00-505-2575
Screw, Close Tolerance
Fastener Length: 0.449 inches minimum and 0.479 inches maximum
Head Style: C32 pan
Nominal Thread Diameter: 0.190 inches Judging by the descriptor against the supplied image with a rule in the background for scale, and given I don't know if the rule is imperial or metric, I don't think the parts tag in the photo matches the bolt pictured.
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JBoe
Member Posts: 980
From: Churchton, MD
Registered: Oct 2012
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posted 04-15-2020 02:59 PM
Thanks guys for all your hard work and help. It's disappointing to see that the label doesn't match the screw and that I just have plain old aviation spare part. |
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