Model: 74255637-6

Ribbed Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.970 inches and 1.061 inches

Fastener Length

Between 1.470 inches and 1.530 inches

Head Style

Roof

Head Diameter

Between 0.491 inches and 0.499 inches

Head Height

Between 0.240 inches and 0.260 inches

Shoulder Diameter

0.540 inches first shoulder and 0.550 inches first shoulder

Shoulder Length

0.282 inches first shoulder and 0.342 inches first shoulder

Thread Diameter

0.500 inches

Thready Qty Per Inch (tpi)

Shoulder Shape

Ribbed first shoulder

Material

Steel

Material Specification

Sae grade 8 assn standard all material responses

Thread Series Designator

Unf

NSN

5306-01-165-1276

Part Number

74255637-6

Description

Bolt,ribbed Shoulder

CAGE

0AHU0

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 74255637-6 NSN 5306-01-165-1276

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:

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