Model: NAS1726-4D

Assembled Washe Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.460 inches

Counterbore Diameter

0.277 inches nut and 0.287 inches nut

Lubrication

Dry film lubricant

Overall Height

Between 0.271 inches and 0.291 inches

Nut Style

Flat with turned up edge

Nut Counterbore Depth

0.072 inches nut and 0.087 inches nut

Width Across Flats

Between 0.274 inches and 0.284 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Nut rockwell c scale 36 min and rockwell c scale 40 max, washer rockwell c scale 40 min and rockwell c scale 45 max

Thread Size

0.250 inches

Bearing Surface Finish

125.0 microinches

Material

Steel comp 1050 washer

Material

Steel comp 4340 nut or steel comp 8740 nut

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 type 2 class 2 federal specification single treatment response

Specification Data

80205-nas1726 professional/industrial association standard

NSN

5310-01-057-9360

Part Number

NAS1726-4D

Description

Nut,self-locking,assembled Washe

CAGE

80205

A nut on which has been assembled a nonremovable washer. An integral feature is incorporated for locking on the threads of a mating member.

Part NAS1726-4D NSN 5310-01-057-9360

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29736

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