Model: MIL-S-1222

Machine Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.625 inches
Fastener Length
Between 0.719 inches and 0.750 inches
Head Style
Hexagon
Head Height
Between 0.226 inches and 0.243 inches
Width Between Flats
Between 0.551 inches and 0.562 inches
Thread Diameter
0.375 inches
Grip Length
0.125 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
16
Min. Tensile Strength (psi)
120000 pounds per square inch
Hardness Rating
23.0 rockwell c and 34.0 rockwell c
Material
Steel comp 1050 or steel comp 1552 or steel comp 1053
Material Specification
66 federal standard all material responses
Thread Series Designator
Unc
Nondefinitive Specification/std Data
1 type and 5 grade
Departure From Cited Designator
As modified by thread lg
NSN
5306-00-276-8469
Part Number
MIL-S-1222
Description
Bolt,machine
CAGE
81349

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Part MIL-S-1222 NSN 5306-00-276-8469

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01847
FIIG:
A003B0
Concept No.:
App. Key:
BR
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:
U
ESD:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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