Model: 89LM2640-1

Hexagon Slotted Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Slotted, hexagon

Nut Height

Between 0.740 inches and 0.760 inches

Width Across Flats

Between 1.977 inches and 2.002 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 33.0 rockwell c and 37.0 rockwell c

Thread Size

1.500 inches

Bearing Surface Type

Washer faced

Bearing Surface Finish

125.0 microinches

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp e4340

Material Specification

Mil-s-5000 military specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, class 1 federal specification single treatment response or qq-p-416, type 1, class 2 federal specification single treatment response or qq-p-416, type 1, class 3 federal specification single treatment response

Surface Treatment Specification

NSN

5310-00-637-0159

Part Number

89LM2640-1

Description

Nut,plain,slotted,hexagon

CAGE

26512

A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, castellated, hexagon.

Part 89LM2640-1 NSN 5310-00-637-0159

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01859

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:

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