Model: 1304127-121

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 1.225 inches and 1.255 inches
Fastener Length
4.125 inches
Head Style
Hexagon extended washer
Head Height
1.325 inches
Width Between Flats
Between 1.052 inches and 1.064 inches
Width Between Flats
Between 1.052 inches and 1.064 inches 1.064 inches
Extended Washer Diameter
0.650 inches
Extended Washer Thickness
2.070 inches
First Diameter From Head
Between 1.123 inches and 1.124 inches
Second Diameter From Head
Between 0.998 inches and 0.999 inches
Third Diameter From Head
Between 0.872 inches and 0.882 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
2.063 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
2.620 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
Between 2.870 inches and 2.900 inches
Thread Diameter
1.000 inches
Thready Qty Per Inch (tpi)
12
Min. Tensile Strength (psi)
180000 pounds per square inch
Externally Relieved Body Diameter Quantity
1
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp e4340
Material Specification
Mil-s-5000 military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Lc+77-1061 type 2, cage 36659 mfr ref single treatment response
Thread Series Designator
Unjf
NSN
5306-00-503-5275
Part Number
1304127-121
Description
Bolt,externally Relieved Body
CAGE
98897

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 1304127-121 NSN 5306-00-503-5275

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:
U
ESD:
ESD:
MMAC:
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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