Model: 12387306-43

Shoulder Screw

Special Features:

Made to ms51975-43 except for finish whihc is zinc instead of cadmium

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.720 inches and 0.750 inches

Fastener Length

Between 1.970 inches and 2.000 inches

Head Style

Flat chamfer

Head Diameter

Between 0.853 inches and 0.875 inches

Head Height

Between 0.365 inches and 0.375 inches

Shoulder Diameter

0.621 inches first shoulder and 0.623 inches first shoulder

Shoulder Length

1.250 inches first shoulder

Internal Drive Style

Hexagon

End Application

5420-01-430-5403

Thread Diameter

0.500 inches

Width Across Flats

0.312 inches

Thready Qty Per Inch (tpi)

Shoulder Shape

Round first shoulder

Color

Bronze or olive drab

Material

Steel

Material Specification

Astm a574 assn standard single material response

Surface Treatment

Zinc and chromate

Surface Treatment Specification

Astm b633, type ii, classs 3 assn standard single treatment response

Thread Series Designator

Unc

NSN

5305-01-506-9165

Part Number

12387306-43

Description

Screw,shoulder

CAGE

19207

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Part 12387306-43 NSN 5305-01-506-9165

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22846

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:

096640

UFC:

50600

LTL:

70.0

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