Model: CB9351-4-7C

Machine Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.498 inches
Fastener Length
0.935 inches
Head Style
Flat countersunk
Head Diameter
Between 0.449 inches and 0.507 inches
Internal Drive Style
Torx
End Application
B-2 bomber
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Countersink Angle
100.0 degrees
Screw Material
Cobalt comp mp-35-n
Screw Material Specification
Ams5844 assn standard single material response
Thread Series Designator
Unjf
NSN
5305-01-571-6151
Part Number
CB9351-4-7C
Description
Screw,machine
CAGE

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part CB9351-4-7C NSN 5305-01-571-6151

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
Concept No.:
App. Key:
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:
BQ
CRITL:
X

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Schedule B and Export
  • Schedule B: 8105900000
  • SITC: 69981
  • End Use: Finished metal shapes
  • NAICS: 331491
  • USDA: 1

Freight Class: Cobalt, wrought, and articles thereof

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