Model: 3278849

Socket Head Cap Screw

Properties:

Thread Direction
Right-hand
Thread Length
0.340 inches
Fastener Length
0.500 inches
Head Style
Flat chamfer
Head Diameter
0.300 inches
Head Height
0.160 inches
Internal Drive Style
Hexagon
Thread Diameter
0.164 inches
Width Across Flats
Between 0.125 inches and 0.127 inches
Thready Qty Per Inch (tpi)
80
Hardness Rating
31.0 rockwell c and 36.0 rockwell c
Material
Steel comp 416
Material Specification
Qq-s-764, cond a federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
H+4-169 fscm 82577 mfr ref single treatment response
Thread Series Designator
Uns
NSN
5305-00-146-3136
Part Number
3278849
Description
Screw,cap,socket Head
CAGE
82577

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 3278849 NSN 5305-00-146-3136

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:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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