Model: 91253A580

Socket Head Cap Screw

Special Features:

Astm specification: astm f835; tip type: plain

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.427 inches
Fastener Length
0.625 inches
Head Style
Flat countersunk
Head Diameter
0.656 inches
Internal Drive Style
Hexagon
End Application
2540-01-566-6751; gunners seat and restraint system
Thread Diameter
0.312 inches
Width Across Flats
0.187 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
144000 pounds per square inch
Hardness Rating
39.0 rockwell c
Countersink Angle
82.0 degrees
Part Name Assigned By Controlling Agency
5/16 18 x 5/
Color
Black
Material
Steel
Surface Treatment
Oxide
Thread Series Designator
Unc
NSN
5305-01-570-2320
Part Number
91253A580
Description
Screw,cap,socket Head
CAGE
39428

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 91253A580 NSN 5305-01-570-2320

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
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:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
096640
UFC:
50600
LTL:
70.0
LCL:
--
WCC:
713
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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