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Products in the Teknipart Extra Heavy Duty range:

Product TR1530, Threaded Insert - Metric - Inch heavy duty - stainless steel
Insert - Metric - Inch
heavy duty - stainless steel
Product TR1566, Threaded Insert - Inch extra heavy duty - stainless steel
Threaded Insert - Inch
heavy duty stainless steel
Product TR1656, Threaded Insert MS/NAS - Extra H Duty - Inch 303 stainless steel - non-locking - MS/NAS grade
MS/NAS Gr Ex Hv Duty
inch, 303 s/s non-locking
Product TR1657, Threaded Insert MS/NAS - Extra H Duty - Inch 303 stainless steel - self-locking - MS/NAS grade
MS/NAS Gr Ex Hv Duty
inch, 303 s/s self-locking
TR1656 Threaded Insert MS/NAS - Extra H Duty - Inch 197 kB pdf
Extra Heavy Duty 965 kB pdf
Threaded Inserts Stainless 7 MB pdf
Threaded Inserts 15 MB pdf
Threaded Insert MS/NAS - Extra H Duty - Inch
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Data Sheet
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TR1656 Threaded Insert MS/NAS - Extra H Duty - Inch

303 stainless steel - non-locking - MS/NAS grade, Material: Stainless steel

Threaded Insert MS/NAS - Extra H Duty - Inch

Data Table

Order No. Order by articlenumber Type Order by parameter d1
tol. 3B Order by parameter		 Thread type d1 Order by parameter d2
(mod.) class 2A Order by parameter		 Thread type d2 Order by parameter l1 Order by parameter l4 c'bore depth Order by parameter Inst. c'sink hole size
+0.010|-0.000 Order by parameter		 Inst. tap drill size Order by parameter Inst. thread tap depth
min. Order by parameter		 Inst. thread tap size
class 2B Order by parameter		 Inst. tool ref. TR1706 Order by parameter Removal drill size Order by parameter Removal drill depth Order by parameter
TR1656.76333 NL 10-24 UNC 7/16-14 UNC .312 .07 .447 .397 .37 7/16-14 .0330 11/32 3/16
TR1656.76533 NL 10-32 UNF 7/16-14 UNC .312 .07 .447 .397 .37 7/16-14 .0331 11/32 3/16
TR1656.76334 NL 1/4-20 UNC 1/2-13 UNC .375 .07 .510 .453 .44 1/2-13 .0340 13/32 3/16
TR1656.76534 NL 1/4-28 UNF 1/2-13 UNC .375 .07 .510 .453 .44 1/2-13 .0341 13/32 3/16
TR1656.76335 NL 5/16-18 UNC 9/16-12 UNC .437 .07 .572 .516 .50 9/16-12 .0350 15/32 3/16
TR1656.76535 NL 5/16-24 UNF 9/16-12 UNC .437 .07 .572 .516 .50 9/16-12 .0351 15/32 3/16
TR1656.76336 NL 3/8-16 UNC 5/8-11 UNC .500 .07 .635 .578 .56 5/8-11 .0360 17/32 3/16
TR1656.76536 NL 3/8-24 UNF 5/8-11 UNC .500 .07 .635 .578 .56 5/8-11 .0361 17/32 3/16
TR1656.76337 NL 7/16-14 UNC 11/16-11NS UNS .625 .10 .700 .641 .68 11/16-11NS .0370 19/32 3/16
TR1656.76537 NL 7/16-20 UNF 11/16-11NS UNS .625 .10 .700 .641 .68 11/16-11NS .0371 19/32 3/16
TR1656.76338 NL 1/2-13 UNC 13/16-16 UNF .688 .10 .822 .766 .75 13/16-16 .0380 23/32 3/16
TR1656.76538 NL 1/2-20 UNF 13/16-16 UNF .688 .10 .822 .766 .75 13/16-16 .0381 23/32 3/16
TR1656.76339 NL 9/16-12 UNC 7/8-14 UNF .812 .10 .885 .828 .94 7/8-14 .0390 25/32 3/16
TR1656.76539 NL 9/16-18 UNF 7/8-14 UNF .812 .10 .885 .828 .94 7/8-14 .0391 25/32 3/16
TR1656.76340 NL 5/8-11 UNC 1-12 UNF .875 .10 1.020 .937 1.00 1-12 .0400 27/32 5/16
TR1656.76540 NL 5/8-18 UNF 1-12 UNF .875 .10 1.020 .937 1.00 1-12 .0401 27/32 5/16
TR1656.76341 NL 3/4-10 UNC 1-1/4-12 UNF 1.125 .10 1.270 1.187 1.31 1-1/4-12 .0410 1-3/32 5/16
TR1656.76541 NL 3/4-16 UNF 1-1/4-12 UNF 1.125 .10 1.270 1.187 1.31 1-1/4-12 .0411 1-3/32 5/16
TR1656.76342 NL 7/8-9 UNC 1-3/8-12 UNF 1.250 .10 1.395 1.312 1.44 1-3/8-12 .0420 1-7/32 5/16
TR1656.76542 NL 7/8-14 UNF 1-3/8-12 UNF 1.250 .10 1.395 1.312 1.44 1-3/8-12 .0421 1-7/32 5/16
TR1656.76343 NL 1-8 UNC 1-1/2-12 UNF 1.375 .10 1.520 1.437 1.56 1-1/2-12 .0430 1-11/32 5/16
TR1656.76543 NL 1-12 UNF 1-1/2-12 UNF 1.375 .10 1.520 1.437 1.56 1-1/2-12 .0431 1-11/32 5/16

Technical & Application

Material

Inserts - 303 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 1/4 and over. Two locking keys on internal threads smaller than 1/4.
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 (MS51832)

CAD & Data Sheets

Product Datasheets

TR1656 Threaded Insert MS/NAS - Extra H Duty - Inch 197 kB pdf
Extra Heavy Duty 965 kB pdf
Threaded Inserts Stainless 7 MB pdf
Threaded Inserts 15 MB pdf

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