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
3a
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
35
End Application
Scavenge pump, tf-33
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
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:
BU
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
RV
CRITL:
X

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
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

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