Select Page

Floating Nut Plate – 2 Lug – FBL10021-4 – FBL10015 Series

image

FBL10100-4

image

Domed, Self-Sealing

Notes:

Float of nut portion of assembly is 0.025 minimum radially

from centered position. Nut body is capable of engagement with a bolt in the maximum misaligned position.

PART NO.

T THREADSIZE

TENSILE STRENGTH LBS. MIN.

FBL10100-4

.2500-28 UNJF-3B

4580

Material:

Shell: A286 CRES per AMS 5525 (Passivated per QQ-P-35.)

Nut: 4130 Alloy Steel per MIL-S-6758 or 8740 Alloy Steel per MIL-S-6049. (Cadmium plated per QQ-P-416,

Type II, Class 2.)

Washer: C1117 per QQ-S-633, 4130 per AMS 6350 or AMS 6370, or 4340 per AMS 6415. (Cadmium plated per

QQ-P-416, Type II, Class 2.)

Seal: Fluorosilicone rubber.

Lubrication (Nut) : Dry film lube per MIL-L-46010.

Notes:

  1. Magnetic permeability shall be leass than 2.0 (air=1.0) for a field strength of H200 oersteds using a magnetic permeability indicator per MIL-I-17214 or equivalent.
  2. Locking torque: The nut element of these assemblies is

    capable of 250 seated cycles (seated at 100 in. lbs.) when tested per the requirements of MIL-N-25027.

  3. Threads per MIL-S-8879 except in locking area and prior to lubrication.
  4. Anti-seize compund per MIL-A-907 is added to internal thread.

    FBL10018 Series

    Side By Side, Reduced Rivet Space

    image

    PART NO.

    T THREADSIZE

    A MAX.

    B

    +0.000

    -0.050

    C

    +0.010

    D

    +0.005

    -0.000

    E MAX.

    F MIN.

    G MAX.

    J

    +0.002

    K DIA. MIN.

    M DIA. MAX.

    N MAX.

    P MAX.

    FBL10018-3

    .1900-32 UNJF-3B

    0.525

    0.460

    0.250

    0.098

    0.250

    0.100

    0.490

    0.219

    0.194

    0.240

    0.032

    0.409

    FBL10018-4

    .2500-28 UNJF-3B

    0.617

    0.562

    0.281

    0.098

    0.281

    0.100

    0.502

    0.219

    0.254

    0.300

    0.032

    0.526

    FBL10018-5

    .3125-24 UNJF-3B

    0.767

    0.619

    0.359

    0.130

    0.328

    0.125

    0.609

    0.269

    0.317

    0.357

    0.045

    0.588

    PART NO.

    T THREADSIZE

    A MAX.

    B

    +0.000

    -0.050

    C

    +0.010

    D

    +0.005

    -0.000

    E MAX.

    F MIN.

    G MAX.

    J

    +0.002

    K DIA. MIN.

    M DIA. MAX.

    N MAX.

    P MAX.

    FBL10018-3

    .1900-32 UNJF-3B

    0.525

    0.460

    0.250

    0.098

    0.250

    0.100

    0.490

    0.219

    0.194

    0.240

    0.032

    0.409

    FBL10018-4

    .2500-28 UNJF-3B

    0.617

    0.562

    0.281

    0.098

    0.281

    0.100

    0.502

    0.219

    0.254

    0.300

    0.032

    0.526

    FBL10018-5

    .3125-24 UNJF-3B

    0.767

    0.619

    0.359

    0.130

    0.328

    0.125

    0.609

    0.269

    0.317

    0.357

    0.045

    0.588

    Notes:

    1. Anti-seize compund per MIL-A-907 applied to internal thread.
    2. Mechanical properties of nut plate meets the requirements of procurement specificatiom MIL-N-25027.
    3. The assembly provides a bearing surface for the nut within the cage.
    4. Shape within envelope shown optional.
    5. Threads per MIL-S-8879 except in locking area and prior to lubrication.
    6. Minimum assembly height (E) not specified, limited only by strength requirements.

Notes:

  1. Float of nut portion of assembly is 0.020 minimum radially from centered position. Nut body is capable of engagement with a bolt in the maximum misaligned position.
  2. Nut plates are similar to the dimensional envelope specified in NAS 1789.
  3. Locking torque: The nut element of these assemblies shall be capable of 250 seated, usable cycles when tested per the requirements of CAL-STD-0232.

Material:

Nut: 4140 or 8740 Alloy Steel per MIL-S-5626 or MIL-S-6049. (Cadmium plated per QQ-P-416, Type II, Class 2, dry film lube per MIL-L-46010.)

Cage: 17-7 pH CRES per MIL-S-25043 or AMS 5528.

(Passivated per QQ-P-35.)

Fairchild Fasteners Tridair Products 7

REQUEST A QUOTE