Model: BACB30LU3-5

Close Tolerance Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.320 inches and 0.370 inches
Fastener Length
Between 0.642 inches and 0.672 inches
Head Style
Flat countersunk
Head Diameter
Between 0.337 inches and 0.383 inches
Grip Diameter
Between 0.1885 inches and 0.1895 inches
Internal Drive Style
Cross recess type 1
End Application
Tf-33 engine; engine, aircraft, tf-33-p-7; aircraft, c-18a, ec-18b; joint stars target radar sys; aircraft, stratofortress b-52; aircraft, stratolifter c-135; aircraft, hercules c-130; e-3a awacs
Thread Diameter
0.190 inches
Grip Length
Between 0.302 inches and 0.322 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
160000 pounds per square inch
Countersink Angle
Between 99.0 degrees and 100.0 degrees
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Material
Steel comp e4340 or steel comp 8740
Material Specification
Mil-s-5000 military specification 1st material response or mil-s-6049rjgcams 6322 military specification 2nd material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, ty2, cl 3 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5305-00-526-1038
Part Number
BACB30LU3-5
Description
Screw,close Tolerance
CAGE
06710

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 BACB30LU3-5 NSN 5305-00-526-1038

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:
SX
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:
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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