Model: 525340

Internal Wrenching Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.335 inches and 0.365 inches
Fastener Length
Between 0.990 inches and 1.000 inches
Head Style
Fillister
Head Diameter
Between 0.740 inches and 0.760 inches
Head Height
Between 0.150 inches and 0.170 inches
Shank Unthreaded Hole Diameter
0.065 inches all holes and 0.072 inches all holes
First Diameter From Head
Between 0.253 inches and 0.257 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.345 inches and 0.355 inches
Internal Drive Style
Square
Thread Diameter
0.250 inches
Width Across Flats
Between 0.163 inches and 0.193 inches
Thready Qty Per Inch (tpi)
28
Distance From Head Largest Bearing Surface To Shank Hole Center
0.690 inches all holes and 0.710 inches all holes
Externally Relieved Body Diameter Quantity
1
Surface Finish
32.0 microinches threads
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Material
Steel
Material Specification
Ams 5625 assn standard single material response or ams 7473 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams 2400 assn standard single treatment response
Thread Series Designator
Unf
NSN
5306-00-942-2547
Part Number
525340
Description
Bolt,internal Wrenching
CAGE
77445

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 525340 NSN 5306-00-942-2547

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06666
FIIG:
A003B0
Concept No.:
App. Key:
BM
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:
2.0000lbs
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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