Model: 21788-00972

Plate Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Counterbore Diameter

0.178 inches nut and 0.270 inches nut

Lubrication

Dry film lubricant

Mounting Hole Diameter

Between 0.098 inches and 0.103 inches

Nut Style

Plate

Nut Length

0.682 inches

Nut Height

0.171 inches

Plate Thickness

0.140 inches

Plate Width

Between 0.290 inches and 0.357 inches

Nut Counterbore Depth

0.140 inches nut

Nut Mounting Provision

Straight holes

Mounting Hole Arrangement Style

2 holes

Distance From Aperture Center To Mounting Hole Center

Between 0.213 inches and 0.223 inches

Center To Center Distance Between Mounting Holes Along Length

Between 0.435 inches and 0.439 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjc

Features Provided

Floating nut

Thready Qty Per Inch (tpi)

Thread Size

0.138 inches

Material

Iron alloy 660

Material Specification

Ams 5735 assn standard single material response or ams 5737 assn standard single material response or ams 5525 assn standard single material response

NSN

5310-00-771-7396

Part Number

21788-00972

Description

Nut,self-locking,plate

CAGE

K0662

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

Part 21788-00972 NSN 5310-00-771-7396

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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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel