Model: 91253A389

Socket Head Cap Screw

Special Features:

0.250in head height; 0.500in fastener diameter; 137000 tensile strength; rockwell hardness c38-44

Properties:

Thread Direction

Right-hand

Thread Length

1.500 inches

Fastener Length

3.000 inches

Head Style

Flat countersunk

Head Diameter

0.500 inches

Internal Drive Style

Hexagon

Thread Diameter

0.500 inches

Width Across Flats

0.313 inches

Thready Qty Per Inch (tpi)

Countersink Angle

82.000 degrees

Part Name Assigned By Controlling Agency

Socket head cap screw

Color

Black

Material

Stainless steel

Surface Treatment

Oxide

Thread Series Designator

Unc

NSN

5305-01-516-6281

Part Number

91253A389

Description

Screw,cap,socket Head

CAGE

39428

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 91253A389 NSN 5305-01-516-6281

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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:

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