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Data Table

Order No. Order by articlenumber Type Order by parameter d1 3B Order by parameter Thread type d1 Order by parameter d2 2A Order by parameter Thread type d2 Order by parameter l1 Order by parameter l2 Order by parameter Rem. drill size Order by parameter l4 c'bore depth Order by parameter l5 Order by parameter Inst. tool ref. TR1700 Order by parameter Inst. tap drill size* Order by parameter Inst. c'sink hole size +,010 -,000 Order by parameter Inst. thread tap size class 2B Order by parameter Inst. thread tap min. depth Order by parameter
TR1670.83290 NL 2-56 UNC 8-32 UNC ,24 ,18 #33 C'Sink ,13 .0830 ,134 ,166 8-32 ,24
TR1670.83291 NL 4-40 UNC 10-32 UNF ,31 ,22 #29 C'Sink ,17 .0840 .161 ,194 10-32 ,28
TR1670.83292 NL 6-32 UNC 12-28 UNF ,39 ,22 #21 C'Sink ,21 .0850 ,187 ,220 12-28 ,28
TR1670.83294 NL 8-32 UNC 1/4-28 UNF ,43 ,24 #8 C'Sink ,25 .0860 ,228 ,255 1/4-28 ,30

Technical & Application

Material

Inserts - A303 CRES.
Keys - 302 CRES.
Passivated. Dry film lubrication on self-locking inserts only.

Technical Notes

All dimensions in inches.
Internal threads: to SAE AS8879.
General tolerances -
+/- 0,010 unless specified.
Tap drill hole tolerances -
0,234 to 0,500 = +0,004/-0,001
0,500 and over = +0,005/-0,001
NL = Non-Locking type.

Tips

Order installation tool separately, as identified by "Inst. Tool ref." in table.

Important Notes

Four locking keys on internal threads 5/16 and over. Two locking keys on internal threads smaller than 5/16.
Installation (Inst.) drill size, counter sink, thread tap and thread depth as specified in table.
Removal (Rem.) drill size and drill depth as specified in table.
Perform to standards: MIL-I-45914A

CAD & Data Sheets

Product Datasheets

TR1670 Blind Threaded Insert - Mini - Inch 310 kB pdf
Miniature 3 MB pdf
Threaded Inserts 27 MB pdf

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