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MS21251 same as NAS649
Turnbuckle Body MS21251 Brass
MS21251 turnbuckle body
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Item #

Mil Spec

MBS (lbs)

Thread T UNF-38

L ± .031

P ± .005

Appl. Cable Locking Clip MS21256

Lbs. Per Piece

MS21251-B2S N/A MS21251 N/A 800 N/A 6-40 N/A 2.250 N/A N/A -1 N/A .018
MS21251-B2L N/A MS21251 N/A 800 N/A 6-40 N/A 4.000 N/A N/A -2 N/A .034
MS21251-B3S N/A MS21251 N/A 1,600 N/A 10-32 N/A 2.250 N/A .125 N/A -1 N/A .031
MS21251-B3L N/A MS21251 N/A 1,600 N/A 10-32 N/A 4.000 N/A .125 N/A -2 N/A .050
MS21251-B5S N/A MS21251 N/A 3,200 N/A 1/4-28 N/A 2.500 N/A .125 N/A -1 N/A .052
MS21251-B5L N/A MS21251 N/A 3,200 N/A 1/4-28 N/A 4.000 N/A .125 N/A -2 N/A .097
MS21251-B6S N/A MS21251 N/A 4,600 N/A 5/16-24 N/A 2.250 N/A .125 N/A -1 N/A .063
MS21251-B6L N/A MS21251 N/A 4,600 N/A 5/16-24 N/A 4.000 N/A .125 N/A -2 N/A .106
MS21251-B8L N/A MS21251 N/A 8,000 N/A 3/8-24 N/A 4.000 N/A .125 N/A -2 N/A .109
MS21251-B9L N/A MS21251 N/A 12,500 N/A 7/16-20 N/A 4.250 N/A .188 N/A N/A .296
MS21251-B10L N/A MS21251 N/A 17,500 N/A 1/2-20 N/A 4.250 N/A .188 N/A -3 N/A .413
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