Model: 53-20-406-24

Thumbscrew

Special Features:

Marking, mil-std-130

Properties:

Thread Class

Thread Direction

Right-hand

Fastener Length

Between 0.594 inches and 0.718 inches

Head Style

Knurled no. 4

Head Diameter

Between 0.302 inches and 0.322 inches

Head Height

Between 0.156 inches and 0.218 inches

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Material

Steel

Material Specification

Astma313, a493, qq-s-763 assn standard 1st material response or qq-s-766 federal specification 2nd material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification 1st treatment response

Thread Series Designator

Unc

NSN

5305-01-440-4447

Part Number

53-20-406-24

Description

Thumbscrew

CAGE

94222

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Part 53-20-406-24 NSN 5305-01-440-4447

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06673

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:

0.1000lbs

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:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment