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Star key blank GM OBR135

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ngaloba

Newbie

Posts: 1

Joined: Wed Apr 06, 2022 6:08 am

Post Wed Apr 06, 2022 6:24 am

Star key blank GM OBR135

Hi, I was searching for information about key blanks and accidentally came upon someone here that was searching for Star GM OBR135. Had to register to respond and lost the user. I inherited almost a 1000 old star keys and a couple hundred auto ones. For fun I did a search and found one that I think is either a GM OBR135 or maybe a GM OBR13S. There are probably more. Let me know if you read this and are interested. Use my email ngaloba@comcast.net, subject star. Good luck, Chuck
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10ringo10

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Joined: Fri May 14, 2010 5:45 pm

Location: EUROPE

Post Wed Apr 06, 2022 11:28 am

Re: Star key blank GM OBR135

Welcome to key picking forum maybe someone's interested in the old Star keys.... Will be OBR13S I Think going on codes

Star key blank list fyi.

4ER1 4MA2 4MA7 4YA1 4YA15 4YA6 5AM1 5AR2 5AU1 5AU2 5BO1 5CG4 5CG5 5CG7 5CL1 5CO1 5CO11 5CO12 5CO13 5CO2 5CO3 5CO4 5CO5 5CO6 5CO9 5DA1 5DE3 5DO1 5DO3 5EA1 5EA2 5EL1 5EL2 5EL3 5EL4 5ER1 5ES1 5EX99 5FT1 5HO1 5HR1 5HR2 5IL11 5IL2 5IL3 5IL4 5IL6 5IL7 5IL9 5JU2 5KE1 5KE2 5KW1 5LO1 5MA3 5MA4 5MA5 5MA6 5MA7 5ME1 5NA1 5PE1 5PE2 5RO4 5RO4N 5RP2 5RU1 5RU2 5RU5 5RU6 5RU7 5RU8 5RU9 5SA-LA 5SA1 5SA2 5SA3 5SA5 5SA6 5SA7 5SE1 5SE1M 5SE2 5SH1 5SH1C 5SH3 5SH4 5SH5 5SH7 5SQ1 5TA1 5TA4 5UN1 5VR1 5VR2 5VR3 5VR4 5WE1 5WI1 5WR1 5WR2 5WR2N 5YA1 5YA13 5YA1E 5YA1M 5YA6 6AL1 6AR2 6BE1 6BE2 6CH2 6CO1 6CO11 6CO12 6CO14 6CO16 6CO2 6CO3 6CO5 6CO6 6DE3 6EL4 6JU2 6KW1 6LO1 6MA8 6ME1 6RU2 6RU5 6RU7 6RU8 6RU9 6SA-LA 6SA3 6SA6 6SA7 6SH1 6SH1C 6SH3 6SH4 6SH5 6SH7 6VL1 6WR2 6YA1 6YA12 6YA14 6YA3 6YA6 6YA7 AD1 AR1 BN1 CB1 CB10 CB2 CB3 CB4 CB5 CB6 CB7 CB8 CB9 CG1 CG2 CG6 CHR93 CHR94 CO7 CP1 CP2 CP3 CP4 DA25/P DA3 DA4 DA5 DA6 DA7 DE2 EA3 EA5 EA6 FT2 FT3 GM64C GM67H GM68 GM78E GM79D HBR1 HBR10J HBR11 HBR12A HBR14C HBR15A HBR15C HBR15E HBR2 HBR5M HBR8 HBR9E HD91/P HFD10 HFD11 HFD12 HFD12L HFD4 HN2-3 HN4 HN5 HN6 HN7 HN90 HN95 HN98 HPL1 HPL3 HPL68 HPL73 HPL89 HY5 HYA5 IL10UN IL5 IS1 IS2 IS3 JU1 KWT LCO15 LCO7 LDC1 LTO1 LU1 LYJ1 M6000 M7000 MA1 MI1 MIT1/P MW1 MZ1 MZ13 MZ13/P MZ2 MZ3 MZ4 MZ5 OBR1 OBR10K OBR11 OBR12B OBR13 OBR13S OBR14D OBR1DB OBR3 OBR9H OFD1 OFD10 OFD4 OFD6 OPL1 OPL2 OPL5 OPL68 RO1 RO3 RO5 RO6 RP1 SAT91 SH2 SH6 SL1 SM1 TA3 TO1 TO2 TO3 TO37 TO4 TO47 TR33/P TR37/P TR40/P TR47/P UN2 UN3 UN4 VW1 VW2 VW3 VW4 VW5 YA10 YJ1 YJ2 YJ3 YJ4 YJ5

How it worked or coded. ... Brass blanks where good for locksmiths at the time

1 - the "prefix" which designated the number of pins in the lock.
2 - a lock manufacturer identification code.
3 - a keyway "suffix" which designates the keyway.

a 5co1 fits a 5 pin corbin lock and a 5co1, 6co1 (6 pin), and a 7co1 (7 pin) all fit the same keyway but each work with a different amount of pins, 5, 6 & 7 respectively.
picture
back when cars used a 2 key system, one for the ignition and one for the doors or trunk, star used different prefixes such as "h" (hexagon shape of the key) for the ignition and "o" (oval shape of the key) for the doors or trunk. these key shapes were typically used by general motors and sold by briggs & stratton at the time.

the star brass blanks were great for impressioning locks because they were soft enough to get great impression marks but still strong enough to withstand torque and wear. impressioning marks are more visible on brass compared to a nickle plated key. the fact that these keys where both soft and hard at the same time, which sounds like an oxy-moron, made them the key of choice by many locksmiths. the traditional brass keys self lubricated the keyway with the brass to brass contact against the internal brass pins of the lock cylinder itself.

certain keyways were also available as a modified form of a "universal" keyway, such as in general motors vehicles. these universal key blanks allowed for a specially milled key to pass into a variety of keyways or sections.

Just good info ... And universal keys are widely made and used by a lot of key manufacturers today...... chances are if you've
had a Key cut it's possible a universal key which was used so may not look like you're original key after inspection
meaning the groves or slots cut into key differ to the milling in the
Locks core or body ..locksmiths use them all the time and saves on money and time
Why stock a blank that fits . Just one keyway when you can buy a universal to fit many keyway types
Loved the old brass keys !



RIngo
Last edited by 10ringo10 on Sun Apr 10, 2022 10:29 am, edited 2 times in total.
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bitbuster

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Posts: 920

Joined: Tue Aug 17, 2010 8:03 pm

Location: NW Wis

Post Wed Apr 06, 2022 2:40 pm

Re: Star key blank GM OBR135

ngaloba wrote:Hi, I was searching for information about key blanks and accidentally came upon someone here that was searching for Star GM OBR135. Had to register to respond and lost the user. I inherited almost a 1000 old star keys and a couple hundred auto ones. For fun I did a search and found one that I think is either a GM OBR135 or maybe a GM OBR13S. There are probably more. Let me know if you read this and are interested. Use my email ngaloba@comcast.net, subject star. Good luck, Chuck

Email sent.
...Warm smell of colitas, rising up through the air... Eagles, Hotel California, 1976

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