Model: 71657CR-7-860

Externally Relieved Body Bolt

Special Features:

Externally relieved area is between grip and threads; grip is 0.860 in. Lg x 0.4360/0.4370 in. Dia

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.334 inches
Fastener Length
1.298 inches
Head Style
Hexagon extended washer
Head Height
0.219 inches
Width Between Flats
0.558 inches
Extended Washer Diameter
0.558 inches
Extended Washer Thickness
Between 0.015 inches and 0.025 inches
Shank Unthreaded Hole Diameter
0.106 inches first hole and 0.116 inches first hole
First Diameter From Head
Between 0.304 inches and 0.314 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.094 inches and 0.114 inches
End Application
1560-00-460-1523 and 1560-00-460-1524 on f-111t acft
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
24
Hardness Rating
46.0 rockwell c and 50.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.105 inches first hole
Externally Relieved Body Diameter Quantity
1
Material
Stainless steel
Material Specification
Ams 6487 assn standard single material response
Surface Treatment
Cadmium threads
Surface Treatment
Chromium grip
Surface Treatment
Cadmium head
Surface Treatment Specification
Nas 672 national specification single treatment response head or ams 2416 assn standard single treatment response head
Surface Treatment Specification
Nas 672 national specification single treatment response threads or ams 2416 assn standard single treatment response threads
Surface Treatment Specification
Qq-c-320, class ii federal specification single treatment response grip
Thread Series Designator
Unjf
NSN
5306-01-318-3016
Part Number
71657CR-7-860
Description
Bolt,externally Relieved Body
CAGE

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

Part 71657CR-7-860 NSN 5306-01-318-3016

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06675
FIIG:
A003B0
Concept No.:
App. Key:
BF
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:
BJ
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
574
TCC:
Z
SHC:
9
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

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