Model: 3B1170C3-20A

Close Tolerance Screw

Special Features:

125 ksi shear strength

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.340 inches and 0.350 inches
Fastener Length
Between 1.580 inches and 1.610 inches
Head Style
Flat countersunk
Head Diameter
Between 0.2931 inches and 0.3016 inches
Spline Major Diameter
Between 0.154 inches and 0.156 inches
Grip Diameter
0.189 inches
Point Diameter
0.345 inches
Point Style
Flat
Internal Drive Style
Torx
Thread Diameter
0.190 inches
Grip Length
Between 1.240 inches and 1.260 inches
Thready Qty Per Inch (tpi)
32
Countersink Angle
99.0 degrees and 101.0 degrees
Part Name Assigned By Controlling Agency
Bolt, 100 degree reduced head, gear drive recess
Material
Nickel alloy 718
Material Specification
Ams 5662 assn standard single material response
Surface Treatment
Passivate
Thread Series Designator
Unjf
NSN
5305-01-521-6403
Part Number
3B1170C3-20A
Description
Screw,close Tolerance
CAGE
0ZC92

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part 3B1170C3-20A NSN 5305-01-521-6403

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
Concept No.:
App. Key:
SS
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

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:
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: 7508900000
  • SITC: 69975
  • End Use: Finished metal shapes
  • NAICS: 332999
  • USDA: 1

Freight Class: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)

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