Model: MS51866-20

Spline Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Pilot Diameter

Between 0.384 inches and 0.388 inches

Pilot Length

0.250 inches

Nut Style

Spline

Nut Diameter

0.563 inches

Nut Height

0.438 inches

Tempurature Rating

250.0 degrees fahrenheit

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.250 inches

Material

Plastic polyhexamethylene amide locking insert or plastic polycaprolactam locking insert

Material

Steel comp 1117 except insert

Material Specification

Ams 5022 assn standard single material response except insert

Material Specification

Mil-m-20693 military specification all material responses locking insert

Surface Treatment

Cadmium nut

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response nut

NSN

5310-00-815-3451

Part Number

MS51866-20

Description

Nut,self-locking,spline

CAGE

80205

A nut having an externally splined sleeve, which holds it in position when forced into a hole of slightly smaller diameter. An integral feature is incorporated for locking.

Part MS51866-20 NSN 5310-00-815-3451

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15893

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

Pricing & Availability Check

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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