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Unit of Measure

Specifications

Head Style

N/A 100° Flush Tension

Type

N/A Tension

Material

N/A 6AI-4V Titanium alloy per AMS 4928 or AMS 4967

Finish and Lubricant

N/A Dry film lube per AS5272, Type 1 (Head & Shank only, overspray permitted) & cetyl alcohol lube per AS87132.

Nominal Diameter

N/A 1/4 in

Thread Size

N/A 0.2500-28 UNJF-3A

External Thread - Major Diameter

N/A 0.2410-0.2440 in

External Thread - Pitch Diameter

N/A 0.223 in

A

N/A 0.507 in

A1

N/A 0.475 in

D - Before Finish - Aluminum Coat MIN

N/A 0.279 in

D - After Finish - All MAY

N/A 0.281 in

D - After Finish - Aluminum Coat MIN

N/A 0.280 in

D - After Finish - None MIN

N/A 0.280 in

F

N/A 0.006 in

G

N/A 0.005 in

H

N/A 0.095 in

M

N/A 0.0328-0.0349 in

R

N/A 0.020-0.030 in

Chamfer

N/A 1/32" x 45°

V

N/A 0.4241-0.4243 in

Y

N/A 0.160 in

J - MAX

N/A 0.160 in

T

N/A 0.090 in

Z

N/A 0.015 in

Minimum Double Shear, pounds

N/A 11800.000 lb

Tension Pounds Minimum

N/A 5820.000 lb

Notes

Notes

N/A 1. Dimensions in inches & to be met after finish.
2. Surface texture per ASME B46.1.
3. Conical surface of head runout to "D" within 0.004 FIM.
4. "A1" to "D" within "F" FIM. Runout of "D" to "Pitch" within "G" FIM when held on the "Pitch" of the complete threads nearest the shank and checked on the shank within one diameter of the thread runout.
5. Blended radius trensition permits use in interference fit application.
6. Curved or flat edge manufacturer´s option.
7. Flute location ("K" Dimension) and geometry are inspected per HFS specification E106.
8. Threads must accept an AS8879 "GO" ring gage to assure free running nut capability. AS8879 limits do not apply to threads in the fluted portion of the thread, The Minor & Pitch Diameters may be up to 0.004 below AS8879 minimum values and major diameter may be up to 0.002 below sheet 1 values for a distance equal to the flute length plus 1.5P max.
9. See Table III.
10. Pins shall be packaged on repackaged in clear sealed bags. Each bag shall be marked with purchaser´s and manufacturer´s complete part number, manufacturer´s lot number, manufacturer´s or distributor´s name and the pack date.
11. Various nut materials & configurations available upon request.
12. Parts with a manufacture date on or after April 7. 2011 shall have The SPLINE-LOK™ recess petals removed in accordance with E121. The requirements of E121 are not applicable to parts with a manufacture date prior to April 7. 2011; These parts are acceptable for use until inventories are depleted.
13. For dimensions not shown, see Sheets 1 and 2.
14. For Material, Finish and Lube information, see Sheets 1 and 2.