Model: A458-922

Thumbscrew

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.875 inches

Fastener Length

1.375 inches

Head Style

Knurled no. 1

Head Diameter

0.250 inches

Head Height

0.312 inches

Shoulder Diameter

0.188 inches first shoulder

Shoulder Length

0.250 inches first shoulder

Point Style

Flat

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Shoulder Shape

Round first shoulder

Material

Steel comp 303 or steel comp 303se

Material Specification

Mil-s-7720 military specification 1st material response or mil-s-18732 military specification 2nd material response

Surface Treatment

Passivate

Thread Series Designator

Unc

NSN

5305-00-569-0457

Part Number

A458-922

Description

Thumbscrew

CAGE

15280

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 A458-922 NSN 5305-00-569-0457

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:

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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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