Model: F18421L4-3

Plate Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Counterbore Diameter

0.194 inches nut

Mounting Hole Diameter

Between 0.098 inches and 0.103 inches

Nut Style

Plate

Nut Length

0.948 inches

Nut Height

0.443 inches

Plate Thickness

Between 0.028 inches and 0.036 inches

Plate Width

0.474 inches

Nut Counterbore Depth

0.250 inches nut

Nut Mounting Provision

Straight holes

Mounting Hole Arrangement Style

2 holes

Distance From Aperture Center To Mounting Hole Center

Between 0.339 inches and 0.349 inches

Center To Center Distance Between Mounting Holes Along Length

Between 0.686 inches and 0.690 inches

Thread Series

Unjf

Features Provided

Floating nut

Thready Qty Per Inch (tpi)

Thread Size

0.190 inches

Material

Iron alloy 660 shell

Material Specification

Ams5525 assn standard 1st material response shell or ams5735 assn standard 2nd material response shell

Surface Treatment

Passivate shell

Specification Data

76301-st3-443 manufacturers standard

NSN

5310-00-283-7521

Part Number

F18421L4-3

Description

Nut,self-locking,plate

CAGE

80539

Part F18421L4-3 NSN 5310-00-283-7521

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05280

FIIG:

A021A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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