Model: A51B25551-11

Shoulder Bolt
Description:

3a thread class, right-hand , 0.760 inches thread length, 1.650 inches fastener length, round w/wrench flats head style, 1.200 inches head diameter.

Special Features:

Threaded end flatted 0.290 in. Min, 0.300 in. Max w

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.760 inches
Fastener Length
1.650 inches
Head Style
Round w/wrench flats
Head Diameter
1.200 inches
Head Height
0.215 inches
Width Between Flats
0.700 inches
Shoulder Diameter
0.5595 inches first shoulder and 0.5601 inches first shoulder
Shoulder Diameter
0.5595 inches and 0.5601 inches first shoulder
Shoulder Length
0.850 inches first shoulder
Shank Unthreaded Hole Diameter
0.139 inches first hole and 0.145 inches first hole
Shank Unthreaded Hole Diameter
0.139 inches and 0.145 inches first hole
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
150000 pounds per square inch
Hardness Rating
33.0 rockwell c and 37.0 rockwell c
Hardness Rating
33.0 rockwell c and 37.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.400 inches first hole
Shoulder Shape
Round first shoulder
Material
Steel comp 4340
Material Specification
Mil-s-5000 military specification single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 1 federal specification single treatment response
Test Data Document
81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unjf
NSN
5306-00-003-9043
Part Number
A51B25551-11
Description
Bolt,shoulder
CAGE
61174

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 A51B25551-11 NSN 5306-00-003-9043

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:
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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