Ball-Lok® Quick Release Pins



Dimensions
 Dimensions

  C   CALC. DOUBLE
DASH NOM. A B + .000 D E F G H J SHEAR LBS. MIN.
NO. DIA. MAX. MIN. +/- .015 - .030 +/- .015 +/- .020 NOM. MAX. MIN. STEEL
4 1/4 0.2485 0.247 0.287 0.333 0.382 0.562 3/16 1.5 2.45 0.562 8¸200
5 5/16 0.311 0.3095 0.372 0.395 0.382 0.562 3/16 1.5 2.45 0.562 12¸800
6 3/8 0.3735 0.372 0.438 0.425 0.453 0.75 1/4 1.6 2.85 0.687 18¸400
7 7/16 0.436 0.4345 0.507 0.457 0.453 0.75 1/4 1.65 2.85 0.687 25¸000
8 1/2 0.4985 0.497 0.593 0.519 0.574 0.812 5/16 1.8 3.15 0.812 32¸800
9 9/16 0.561 0.5595 0.666 0.583 0.574 0.812 5/16 1.8 3.15 0.812 41¸200
10 5/8 0.6235 0.622 0.748 0.645 0.625 1 3/8 2.1 3.65 0.968 51¸200
12 3/4 0.7485 0.747 0.887 0.707 0.625 1.125 7/16 2.2 4.05 1.125 73¸600
14 7/8 0.8735 0.872 1.043 0.833 0.824 1.375 1/2 2.6 4.55 1.249 100¸000
16 1 0.9985 0.997 1.217 0.957 0.824 1.375 1/2 2.75 4.55 1.249 131¸000

Specifications

PART NAME
BODY 4130 ALLOY STEEL MIL-S-6758 OR EQUIV.
SPINDLE 4130 ALLOY STEEL MIL-S-6758
BUTTON MILD STEEL ASTM-A-108
SPRING MUSIC WIRE ASTM-A-228
HEAD (OPTIONAL) 4130 ALLOY STEEL MIL-S-6758 OR EQUIV.
BALLS (4) CRES 440C QQ-S-763
SHACKLE MODIFIED AN116  
BOLT AN23  
NUT AN364  

Heat Treat

ALLOY STEEL: SHANK & SPINDLE - Rc 36-40 (MIL-H-6875)
BALL HARDNESS: Rc 58-62

Protective Treatment

ALLOY STEEL: CADMIUM PLATE (QQ-P-416 TYPE 1 OR TYPE II CLASS 2)
CORROSION RESISTANT STEEL: PASSIVATE (QQ-P-35)

Notes

1) OPTIONAL LANYARD IS ATTACHED DIRECTLY TO THE SHACKLE.
2) 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.
3) IF A GREATER C DIMENSION IS REQUIRED ADD THE LETTER C AND THE LENGTH AFTER THE STANDARD GRIP.
  EXAMPLE: BL8SP15C10 (C10 BEING 1.0 INCHES)
4) FOUR BALLS IS STANDARD

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
 

Shackle Pin Loads

  TABLE II
DASH ULTIMATE LOAD* LBS. MAX. GAP**
NO. 90 DEGREES 135 DEGREES 180 DEGREES 90 DEGREES 135 DEGREES
4 583 583 1¸054 0.037 0.031
5 1¸040 1¸570 2¸390 0.037 0.031
6 1¸744 2¸622 2¸590 0.042 0.036
7 2¸375 2¸870 2¸880 0.042 0.036
8 3¸857 4¸475 4¸906 0.042 0.036
9 4¸250 5¸580 5¸030 0.042 0.036
10 6¸610 9¸530 9¸610 0.047 0.041
12 9¸930 11¸350 11¸061 0.047 0.041
14 12¸650 15¸140 14¸470 0.052 0.046
16 12¸655 13¸948 14¸481 0.052 0.046

Shackle Pin Loads Cont.

NOTES
* ULTIMATE STRENGTH VALUES OBTAINED FROM THE AVERAGE FAILING LOAD OF TEST SPECIMENS DIVIDED BY 1.15
  HOLE TOLERANCES IN FIXTURES PER NAS 618 COLUMN C - SHEET 4. LOAD VALUES MAY BE REDUCED IF OVERSIZE
  INSTALLATION HOLES ARE USED. HARDENED TOOL STEEL SHOULDER BUSHING USED FOR 180 DEGREE TESTS.
** MAXIMUM ALLOWABLE GAP BETWEEN SHACKLE PIN SHOULDER AND FACE OF FIXTURE