Ball-Lok® Quick Release Pins



Dimensions
Dimensions

  C   CALC. DOUBLE SHEAR
DASH NOM. A B + .000 D E F G H J K STRENGTH MIN. LBS.
NO. DIA. MAX. MIN. +/- .005 - .030 +/- .010 +/- .030 MAX. MIN. MAX. +/- .015 STEEL CRES
3 3/16 0.1885 0.187 0.22 0.26 0.187 0.437 0.85 1.55 0.74 0.25 0.312 4¸600 5¸150
4 1/4 0.2485 0.247 0.287 0.29 0.187 0.437 0.85 1.55 0.74 0.25 0.312 8¸200 9¸200
5 5/16 0.311 0.3095 0.372 0.33 0.187 0.5 1 1.55 0.74 0.25 0.375 12¸800 14¸400
6 3/8 0.3735 0.372 0.438 0.365 0.218 0.562 1 1.55 0.81 0.25 0.375 18¸400 20¸600
7 7/16 0.436 0.4345 0.507 0.38 0.218 0.625 1.125 1.55 0.81 0.281 0.406 25¸000 28¸000
8 1/2 0.4985 0.497 0.593 0.46 0.218 0.687 1.35 1.82 0.81 0.281 0.406 32¸800 36¸800
9 9/16 0.561 0.5595 0.666 0.51 0.218 0.75 1.35 1.82 0.81 0.281 0.406 41¸200 46¸000
10 5/8 0.6235 0.622 0.748 0.58 0.25 0.812 1.75 1.82 0.88 0.281 0.562 51¸200 57¸500
12 3/4 0.7485 0.747 0.887 0.67 0.25 0.937 2 2.33 0.93 0.375 0.562 73¸600 82¸500
14 7/8 0.8735 0.872 1.045 0.76 0.375 1.062 2 2.5 1.12 0.375 0.562 100¸000 112¸500
16 1 0.9985 0.997 1.217 0.89 0.375 1.25 2 2.75 1.13 0.375 0.562 131¸000 147¸000

Specifications
PART NAME ALLOY STEEL CORROSION RESISTANT
BODY 4130 ALLOY STEEL MIL-T-6736/MIL-S-6758 CRES 17-4PH OR 15-7MO AMS 5643/AMS5657
SPINDLE 4130 ALLOY STEEL MIL-S-6758 CRES 17-4PH AMS 5643
BUTTON ALUM. ALLOY 2024 OR 2017 QQ-A-225/6/QQ-A-225/5 ALUM. ALLOY 2024 OR 2017 QQ-A-225/6/QQ-A-225/5
SPRING MUSIC WIRE ASTM-A-228 CRES 17-7PH OR 302 AMS 5678/ASTM-A-313
HEAD MILD STEEL ASTM-A-108 CRES 303 ASTM-A-581/582
LEVER MILD STEEL ASTM-A-108 CRES 303 ASTM-A-581/582
BALLS CRES 440C QQ-S-763 CRES 440C QQ-S-763

Heat Treat
ALLOY STEEL: SHANK & SPINDLE - Rc 36-40 (MIL-H-6875)
CORROSION RESISTANT STEEL: SHANK & SPINDLE - Rc 40 MIN. (MIL-H-6875)
BALL HARDNESS: Rc 58-62

Protective Treatment
CARBON AND ALLOY STEEL: CADMIUM PLATE (QQ-P-416 TYPE 1 OR TYPE II CLASS 2)
CORROSION RESISTANT STEEL: PASSIVATE (QQ-P-35)
ALUMINUM ALLOY: ANODIZE (MIL-A-8625)

Notes
1) IF A FOUR BALL PIN IS REQUIRED FOR GREATER TENSION STRENGTH - ADD THE SUFFIX F AT THE END OF A STANDARD CALLOUT.
  EXAMPLE: BLS8DCL15F.
2)   IF A GREATER C DIMENSION IS NECESSARY - ADD LENGTH AFTER C LETTER - EXAMPLE: BLS8DCL15C10 (C10 BEING 1.0 INCHES).
3)  ALL PINS ARE IDENTIFIED PER MIL-STD-130 AND APPLICABLE SPECIFICATIONS.
4)  OPTIONAL LANYARD IS ATTACHED DIRECTLY TO THE HANDLE.
5)  IF GRIP CANNOT BE CALLED OUT IN A WHOLE NUMBER TENTHS - USE A DECIMAL POINT AND CALL OUT ACTUAL GRIP.
  EXAMPLE: 1.25 = 1.250 OR 2.375 + 2.375 GRIP.
6)  BALLS MAY BE ROTATED TO POSITIONS OTHER THAN SHOWN.

Lanyard Table 1

TABLE 1
TAB HOLE SIZE
DASH NO. T DIA. +.004/-.001
-4 .129
-6 .194
-7 .255
-8 .281
-10 .318
-12 .377

Lanyard Notes

NOTES
CABLE: SIZE 1/16 DIAMETER. 7 X 7 CORROSION RESISTANT STEEL PER MIL-W-83420. VINYL COATED - COLOR GREEN
  PER MIL-I-631. RATED FULL STRENGTH: 480 LBS. SWAGING SLEEVE: NICOPRESS 28-IC OR EQUIV.
TAB: A - ALUMINUM ALLOY 2024-T4 PER QQ-A-250/4. C - CORROSION RESISTANT STEEL PER MIL-W-83420.
FINISH: ALL CRES PARTS PASSIVATED PER QQ-P-35. ALL ALUMINUM PARTS ANODIZED PER MIL-A-8625