Model: 6253-1

Ribbed Shoulder Bolt

Properties:

Thread Length

1.250 inches

Fastener Length

2.125 inches

Head Style

Flat chamfer

Head Diameter

1.250 inches

Head Height

0.312 inches

Shoulder Length

0.250 inches first shoulder

Rib Major Diameter

0.812 inches

Rib Length

0.500 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.750 inches

Thread Diameter

0.750 inches

Thready Qty Per Inch (tpi)

Shoulder Shape

Round first shoulder

Material

Steel

Thread Series Designator

Unf

NSN

5306-00-175-7483

Part Number

6253-1

Description

Bolt,ribbed Shoulder

CAGE

0W357

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

Part 6253-1 NSN 5306-00-175-7483

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16014

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:

0.3000lbs

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