Model: MS21125B518

Close Tolerance Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.306 inches and 0.357 inches

Fastener Length

Between 1.603 inches and 1.623 inches

Head Style

Flat chamfer

Head Diameter

Between 0.610 inches and 0.625 inches

Head Height

Between 0.157 inches and 0.172 inches

Locking Feature

Detent ball grip

Grip Diameter

Between 0.3112 inches and 0.3117 inches

Shank Unthreaded Hole Diameter

0.076 inches first hole and 0.086 inches first hole

Internal Drive Style

Slot

Thread Diameter

0.312 inches

Grip Length

Between 1.125 inches and 1.141 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

63000 pounds per square inch

Distance From Head Largest Bearing Surface To Shank Hole Center

1.490 inches first hole and 1.510 inches first hole

Surface Finish

32.0 microinches bearing surface of head

Surface Finish

32.0 microinches grip

Material Specification

Astm a580 cond. A assn standard single material response spring

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Thread Series Designator

Unjf

NSN

5305-01-197-4005

Part Number

MS21125B518

Description

Screw,close Tolerance

CAGE

80205

Part MS21125B518 NSN 5305-01-197-4005

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29294

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:

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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