Model: 81221S41-764PC19

Setscrew

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.312 inches

Fastener Length

Between 0.281 inches and 0.312 inches

Head Style

Headless (setscrew)

Point Style

Cup

Internal Drive Style

Cross recess type 1

Thread Diameter

0.250 inches

Features Provided

Casehardened

Thready Qty Per Inch (tpi)

Hardness Rating

30.0 rockwell c and 37.0 rockwell c

Material Specification

66 federal standard all material responses

Thread Series Designator

Unc

NSN

5305-00-253-5010

Part Number

81221S41-764PC19

Description

Setscrew

CAGE

80064

Part 81221S41-764PC19 NSN 5305-00-253-5010

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06672

FIIG:

A003B0

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:

713

TCC:

SHC:

ACC:

Construction Materials

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