Model: A51B24690-11

Internally Relieved Body Bolt
Description:

3a thread class, right-hand , 0.480 inches thread length, 1.648 inches fastener length, round w/wrench flats head style, 0.835 inches head diameter.

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.480 inches
Fastener Length
1.648 inches
Head Style
Round w/wrench flats
Head Diameter
0.835 inches
Head Height
Between 0.140 inches and 0.150 inches
Width Between Flats
0.750 inches
Shoulder Diameter
Between 0.4925 inches and 0.4936 inches
Shoulder Length
1.168 inches
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.086 inches first hole
Shank Unthreaded Hole Diameter
0.076 inches and 0.086 inches first hole
Concentric Hole Depth
Between 0.838 inches and 0.848 inches
Concentric Hole Diameter
Between 0.186 inches and 0.192 inches
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
24
Hardness Rating
46.0 rockwell c and 49.0 rockwell c
Hardness Rating
46.0 rockwell c and 49.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.548 inches first hole
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel
Material Specification
G-1010 comp 4330v fscm 26512 mfr ref single material response
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Mil-s-8837 type 2 cl1 military specification single treatment response
Style Designator
Concentric hole unthreaded
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
5306-00-003-9026
Part Number
A51B24690-11
Description
Bolt,internally Relieved Body
CAGE
26512

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

Part A51B24690-11 NSN 5306-00-003-9026

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06676
FIIG:
A003B0
Concept No.:
App. Key:
BN
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:
M
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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