Model: 12NB-144

Internal Wrench Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Width Between Flats

Between 1.003 inches and 1.012 inches

Locking Feature

Prevailing torque with nonmetallic insert

Internal Drive Style

Double hexagon

Nut Style

Internal wrenching

Nut Diameter

1.438 inches

Nut Height

1.625 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.875 inches

Material

Plastic polyamide locking insert

Material

Steel comp 4130 except insert

Material Specification

66 federal standard single material response except insert

Surface Treatment

Cadmium nut

NSN

5310-00-208-7222

Part Number

12NB-144

Description

Nut,self-locking,internal Wrench

CAGE

019L2

A cylindrical-shaped nut, the end opposite the bearing surface being designed with an internal socket or splines for use with an inserted wrench. An integral feature is incorporated for locking on the threads of a mating member.

Part 12NB-144 NSN 5310-00-208-7222

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05284

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