Model: MS21286-11

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.552 inches and 0.632 inches
Fastener Length
Between 0.802 inches and 0.822 inches
Head Style
Double hexagon w/hole
Head Height
0.230 inches
Width Between Flats
Between 0.181 inches and 0.189 inches
Extended Washer Diameter
0.270 inches
Extended Washer Thickness
Between 0.030 inches and 0.040 inches
Hole Diameter
0.047 inches
First Diameter From Head
Between 0.116 inches and 0.124 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.190 inches and 0.250 inches
Point Style
Flat
Thread Diameter
0.138 inches
Hole Quantity
4
Hole Type
Drilled
Thready Qty Per Inch (tpi)
40
Hole Configuration Style
Double hexagon longitudinal hole
Externally Relieved Body Diameter Quantity
1
Material
Iron alloy 660
Material Specification
Ams 5731 assn standard single material response
Thread Series Designator
Unjf
NSN
5306-01-300-6365
Part Number
MS21286-11
Description
Bolt,externally Relieved Body
CAGE
96906

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 MS21286-11 NSN 5306-01-300-6365

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:
SX
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:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
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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