Model: A51G20542-11

Socket Head Cap Screw
Description:

3a thread class, right-hand , 0.280 inches thread length, 1.843 inches fastener length, 0.500 inches head diameter, 0.023 inches head height.

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.280 inches
Fastener Length
1.843 inches
Head Diameter
0.500 inches
Head Height
0.023 inches
Locking Feature
Pellet threads
Shank Unthreaded Hole Diameter
0.061 inches first hole and 0.066 inches first hole
Shank Unthreaded Hole Diameter
0.061 inches and 0.066 inches first hole
Internal Drive Style
W/o internal drive
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Part Name Assigned By Controlling Agency
Navy special project
Material
Aluminum alloy 2024 fastener
Material
Aluminum alloy 6061 stand-off
Material Specification
Qq-a-225/6 federal specification single material response fastener
Material Specification
Ww-t-700/6 federal specification single material response stand-off
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416 federal specification single treatment response
Thread Series Designator
Unc
NSN
5305-00-004-2984
Part Number
A51G20542-11
Description
Screw,cap,socket Head
CAGE
61174

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 A51G20542-11 NSN 5305-00-004-2984

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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: 7616106000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Threaded fasteners of aluminum

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