Howmet
Dash Number (Grip) |
N/A 400 |
Grip Range - Min. Grip |
N/A 0.350 in |
Grip Range - Max. Grip |
N/A 0.400 in |
Grip Range |
N/A 0.350-0.400 in |
A |
N/A 0.437 in |
B Min |
N/A 0.479 in |
D Dia |
N/A 0.312 in |
E Dia Max |
N/A 0.311 in |
F Wrench Flats |
N/A 0.152 in |
G Ref. |
N/A 0.073 in |
H |
N/A 0.112 in |
L Ref. |
N/A 0.912 in |
R Rad Max |
N/A 0.040 in |
T Across Hex. Ref. |
N/A 0.500 in |
Minimum available grip length |
N/A -150 |
Recommended Hole Size |
N/A 0.312-0.315 |
J Dia Min |
N/A 0.475 in |
K Max |
N/A 0.540 in |
Break off Limits <5> |
N/A 0.000-0.103 |
Tensile Structural Failure (Min) |
N/A 3600 lb |
Double Shear Min |
N/A 11350 lb |
Locking Torque Min |
N/A 3.500 lb-in0.400 N-m |
Material and Heat Treat |
N/A
Nut: A-286 stainless steel per chemical requirements of AMS 5732; heat treated as required for performance. Corebolt: A-286 per AMS 5731, AMS 5732 or AMS 5737; Heat treated to 175 ksi tensile min. Sleeve: 304 stainless steel per AMS 5639; heat treated as required for performance. Insert: Acetal per ASTM D4181 DryvcapTM: Mild steel. |
Finish |
N/A
Nut, Sleeve & Corebolt: Passivate per AMS-QQ-P-35. KAL-GARD ANN-RO #1013 conversion coating optional. Insert: None DryvcapTM: Color brown. |
Lubricants |
N/A The following lubricants may be applied to any or all components in any combination as required for performance unless otherwise specified: Dry film lube per AS5272, Type I, everlube #812, paraffin wax, or cetyl alcohol per MIL-L-87132. |
Applicable Specification |
N/A
Procurement specification: FCBF208 Special lube and finish: FCBF202 |
Material Type |
N/A A286 CRES |
Rated Shear Strength |
N/A 75 KSI |
Headstyle |
N/A Hex Protruding |
Notes |
N/A
2.Locking feature consists of three (3) indentations located 120° apart on the periphery of the nut component and approximately .040" above intersection of the nut nose angle and O.D. 3.Composite blind fastener with selected combinations of the above lubrications and finishes are specially coded and may be substituted for equivalent non-coded parts at manufacturer´s option. Contact Fairchild Engineering. 4. These parts are similar to FCBF2121 except as follows: A. Improved out-of-grip flagging capacity (corebolt B/O) B. Increased blind side protrusion before and after upset C. Increased installed weight <5> An "L" in place of the dash (-) between the diameter dash number and the grip dash number designates modified break-off limits of +.053/-.050. "EX: FCBF3009( )-6L200". <6>Distortion shall not prevent insertion of the fastener into a ring gauge of length equal to one diameter and hole diameter equal to minimum recommended hole size. Insertion force shall not exceed 5.0 lbs. |
