Model: 494927

Ribbed Shoulder Bolt

Description:

3a thread class, right-hand , 0.490 inches thread length, 1.640 inches fastener length, flat extended washer head style, 0.880 inches head diameter.

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.490 inches and 0.570 inches

Fastener Length

Between 1.640 inches and 1.660 inches

Head Style

Flat extended washer

Head Diameter

Between 0.880 inches and 0.900 inches

Head Height

0.115 inches

Extended Washer Diameter

Between 0.450 inches and 0.470 inches

Extended Washer Thickness

Between 0.010 inches and 0.015 inches

Shoulder Diameter

0.279 inches second shoulder and 0.281 inches second shoulder

Shoulder Diameter

0.285 inches first shoulder and 0.295 inches first shoulder

Shoulder Length

0.060 inches first shoulder

Shoulder Length

0.340 inches second shoulder

Rib Major Diameter

Between 0.279 inches and 0.281 inches

Rib Length

0.340 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

Between 0.240 inches and 0.260 inches

Rib Minor Diameter

Between 0.260 inches and 0.266 inches

Rib Quantity

End Application

Scavenge pump, tf-33

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Hardness Rating

35.0 rockwell c and 40.0 rockwell c

Rib Included Angle

45.0 degrees

Shoulder Shape

Ribbed second shoulder

Shoulder Shape

Round first shoulder

Material

Steel comp 8740

Material Specification

Ams 6322 assn standard single material response

Thread Series Designator

Unf

NSN

5306-00-022-8085

Part Number

494927

Description

Bolt,ribbed Shoulder

CAGE

77445

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 494927 NSN 5306-00-022-8085

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:

133300

UFC:

63220

LTL:

RATING VARIABLE

LCL:

WCC:

593

TCC:

SHC:

ACC:

Equipment for Aircraft

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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