Model: NCS4-2-18

Self-locking Stud

Properties:

Thread Class

2a nut thread

Thread Direction

Right-hand nut thread

Thread Length

0.547 inches nut thread and 0.577 inches nut thread

Thread Length

0.547 inches and 0.577 inches nut thread

Head Diameter

Between 0.197 inches and 0.201 inches

Head Length

Between 0.053 inches and 0.063 inches

Locking Feature

Self-clinching head

Overall Length

Between 0.600 inches and 0.640 inches

Distance Across Flats

0.250 inches

Thready Qty Per Inch (tpi)

40 nut thread

Thread Size

0.112 inches nut thread

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 305

Material Specification

Qq-s-764 federal specification single material response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-f-14072, e300 military specification single treatment response

Style Designator

Self-locking

Thread Series Designator

Unc nut thread

NSN

5307-00-138-6465

Part Number

NCS4-2-18

Description

Stud,self-locking

CAGE

57227

Part NCS4-2-18 NSN 5307-00-138-6465

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

27783

FIIG:

A051A0

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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