Model: LP257-1

Self-locking Stud

Properties:

Thread Class

2a nut thread

Thread Direction

Right-hand nut thread

Thread Length

0.297 inches nut thread and 0.327 inches nut thread

Head Diameter

Between 0.197 inches and 0.201 inches

Head Length

Between 0.054 inches and 0.062 inches

Locking Feature

Self-clinching head

Overall Length

Between 0.377 inches and 0.417 inches

Distance Across Flats

0.250 inches

Thready Qty Per Inch (tpi)

40 nut thread

Thread Size

0.112 inches nut thread

Material

Steel comp 303

Material Specification

Astm a582 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Style Designator

Self-locking

Thread Series Designator

Unc nut thread

NSN

5307-00-998-5105

Part Number

LP257-1

Description

Stud,self-locking

CAGE

03038

Part LP257-1 NSN 5307-00-998-5105

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:

066440

UFC:

36960

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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