Model: S203MR118P003

Spline Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Pilot Diameter

Between 0.158 inches and 0.162 inches

Pilot Length

0.040 inches

Counterbore Diameter

0.128 inches first end and 0.133 inches first end

Nut Style

Spline

Nut Diameter

Between 0.198 inches and 0.208 inches

Nut Height

0.130 inches

Nut Counterbore Depth

0.037 inches first end and 0.043 inches first end

Thread Series

Unc

Thready Qty Per Inch (tpi)

Thread Size

0.112 inches

Part Name Assigned By Controlling Agency

Navy special project

Material

Plastic locking insert

Material

Steel comp 303 except insert

Material Specification

Astm a582 assn standard single material response except insert

Material Specification

Mil-m-20693 composition a type 1 military specification single material response locking insert

Surface Treatment

Passivate locking insert

NSN

5310-01-029-3758

Part Number

S203MR118P003

Description

Nut,self-locking,spline

CAGE

3B150

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 S203MR118P003 NSN 5310-01-029-3758

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:

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:

000000

UFC:

00000

LTL:

NO RATING

LCL:

WCC:

772

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