Model: NAS1758-L20

Hexagon Self-locking Nut

Special Features:

Material: alloy steel, 17-22a (uns k14675) per ams6304, or 8740 (uns g87400) per ams6322. /9/

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all nonmetallic design

Nut Style

Hexagon

Nut Height

1.510 inches

End Application

Mrap - common nsn - used on 2 mrap variants and 1 other weapon system

Width Across Flats

1.699 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

1.250 inches

Bearing Surface Type

Flat

Part Name Assigned By Controlling Agency

Nut, self-locking, extended washer, double hexagon, 220 ksi, 450 deg. F.

Material

Steel comp 8740

Material Specification

Uns g87400 national standard all material responses

NSN

5310-01-576-0600

Part Number

NAS1758-L20

Description

Nut,self-locking,hexagon

CAGE

80205

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part NAS1758-L20 NSN 5310-01-576-0600

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05277

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:

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:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8710000090
SITC: 89111
End Use: Military trucks, armored vehicles, etc.
NAICS: 336992
USDA: 1

Freight Class: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons