Model: BLT8031

Shoulder Bolt

Special Features:

Second shoulder 1 degree angle, rate of reduction in dia. Per inch of length equals 0.0208 min. And 0.2094 max., under cut on underside od head, diameter 0.890 min in. And 0.910 max in. And 0.135 min in. 0.165 max in. Length

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.515 inches and 0.550 inches
Fastener Length
Between 1.490 inches and 1.510 inches
Head Style
Round w/wrench flats
Head Diameter
Between 1.090 inches and 1.110 inches
Head Height
Between 0.240 inches and 0.260 inches
Width Between Flats
Between 0.780 inches and 0.785 inches
Shoulder Diameter
0.495 inches first shoulder and 0.500 inches first shoulder
Shoulder Diameter
0.5901 inches second shoulder
Shoulder Diameter
0.495 inches and 0.500 inches first shoulder
Shoulder Length
0.190 inches first shoulder and 0.210 inches first shoulder
Shoulder Length
0.290 inches second shoulder and 0.340 inches second shoulder
Shoulder Length
0.190 inches and 0.210 inches first shoulder
Shoulder Length
0.290 inches and 0.340 inches second shoulder
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
20
Shoulder Shape
Round all shoulders
Part Name Assigned By Controlling Agency
Navy special project
Material
Stainless steel
Thread Series Designator
Unjs
NSN
5306-00-133-0023
Part Number
BLT8031
Description
Bolt,shoulder
CAGE

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part BLT8031 NSN 5306-00-133-0023

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04905
FIIG:
A003B0
Concept No.:
App. Key:
BY
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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