Model: A51B28521-11

Internally Relieved Body Bolt
Description:

3a thread class, right-hand , 0.355 inches thread length, 2.125 inches fastener length, round w/wrench flats head style, 0.750 inches head diameter.

Special Features:

Chamfer under side of head 45 degrees by 0.050 in.

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.355 inches
Fastener Length
2.125 inches
Head Style
Round w/wrench flats
Head Diameter
0.750 inches
Head Height
0.125 inches
Width Between Flats
Between 0.500 inches and 0.510 inches
Shoulder Diameter
Between 0.3740 inches and 0.3745 inches
Shoulder Length
1.770 inches
Shank Unthreaded Hole Diameter
0.070 inches first hole and 0.080 inches first hole
Concentric Hole Depth
1.600 inches
Concentric Hole Diameter
Between 0.200 inches and 0.206 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Distance From Head Largest Bearing Surface To Shank Hole Center
2.005 inches first hole
Material
Titanium alloy
Material Specification
G-3111, comp 6al-6v-2sn fscm 26512 mfr ref single material response
Style Designator
Concentric hole unthreaded
Thread Series Designator
Unjf
NSN
5306-00-007-2827
Part Number
A51B28521-11
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 A51B28521-11 NSN 5306-00-007-2827

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:
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:
136500
UFC:
68455
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8109900000
  • SITC: 69987
  • End Use: Finished metal shapes
  • NAICS: 331491
  • USDA: 1

Freight Class: Zirconium and articles thereof nesoi

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