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TR1663 Threaded Insert MS/NAS - Thinwall - Inch

4140 steel - self-locking - MS/NAS grade

Threaded Insert MS/NAS - Thinwall - Inch

Data Table

Order No. Order by articlenumber Type Order by parameter d1 class 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 l3 ±.030 Order by parameter Rem. drill depth Order by parameter l4 c'bore depth Order by parameter Inst. tool ref. TR1702 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 Rem. drill size Order by parameter
TR1663.81321 SL 10-24 UNC 5/16-18 UNC ,312 ,22 5/32 ,07 .0210 ,272 ,323 5/16-18 ,37 7/32
TR1663.81521 SL 10-32 UNF 5/16-18 UNC ,312 ,22 5/32 ,07 .0211 ,272 ,323 5/16-18 ,37 7/32
TR1663.81322 SL 1/4-20 UNC 3/8-16 UNC ,375 ,22 3/16 ,07 .0220 ,332 ,385 3/8-16 ,43 9/32
TR1663.81522 SL 1/4-28 UNF 3/8-16 UNC ,375 ,22 3/16 ,07 .0221 ,332 ,385 3/8-16 ,43 9/32
TR1663.81323 SL 5/16-18 UNC 7/16-14 UNC ,437 ,22 3/16 ,07 .0230 ,397 ,447 7/16-14 ,50 11/32
TR1663.81523 SL 5/16-24 UNF 7/16-14 UNC ,437 ,22 3/16 ,07 .0231 ,397 ,447 7/16-14 ,50 11/32
TR1663.81324 SL 3/8-16 UNC 1/2-13 UNC ,500 ,24 3/16 .07 .0240 ,453 ,510 1/2-13 ,56 13/32
TR1663.81524 SL 3/8-24 UNF 1/2-13 UNC ,500 ,24 3/16 .07 .0241 ,453 ,510 1/2-13 ,56 13/32
TR1663.81325 SL 7/16-14 UNC 9/16-12 UNC ,562 ,27 3/16 ,07 .0250 ,516 ,572 9/16-12 ,62 15/32
TR1663.81525 SL 7/16-20 UNF 9/16-12 UNC ,562 ,27 3/16 ,07 .0251 ,516 ,572 9/16-12 ,62 15/32
TR1663.81326 SL 1/2-13 UNC 5/8-11 UNC ,625 ,28 3/16 ,07 .0260 ,578 ,635 5/8-11 ,68 17/32
TR1663.81526 SL 1/2-20 UNF 5/8-11 UNC ,625 ,28 3/16 ,07 .0261 ,578 ,635 5/8-11 ,68 17/32

Technical & Application

Material

Inserts - 4140 alloy steel (160 KSI Min).
Keys - 302 CRES.
Cadmium plate (QQ-P-416 Type II, Cl. 2). 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
SL = Self-Locking type, deliberate deformity in thread produces self-affect once installed (see technical diagram).

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 (MS51830 & NAS1394)

CAD & Data Sheets

Product Datasheets

TR1663 Threaded Insert MS/NAS - Thinwall - Inch 331 kB pdf
Thinwall 3 MB pdf
Threaded Inserts 27 MB pdf

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