Model: ST3M774A4

Assembled Washe Self-locking Nut

Special Features:

Concave self-aligning washer

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.515 inches

Counterbore Diameter

0.277 inches nut and 0.287 inches nut

Lubrication

Dry film lubricant

Overall Height

0.292 inches

Nut Style

Flat

Nut Height

0.090 inches

Nut Counterbore Depth

0.065 inches nut

Width Across Flats

Between 0.305 inches and 0.313 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.250 inches

Material

Iron alloy 660 nut

Material

Iron alloy 660 washer

Material Specification

Ams 5732 assn standard single material response nut or ams 5737 assn standard single material response nut

Material Specification

Ams 5732 assn standard single material response washer or ams 5737 assn standard single material response washer

Surface Treatment

Passivate nut

Surface Treatment

Passivate washer

NSN

5310-01-131-9867

Part Number

ST3M774A4

Description

Nut,self-locking,assembled Washe

CAGE

76301

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 ST3M774A4 NSN 5310-01-131-9867

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