Model: CA28121-2

Panel Screw Assembly

Special Features:

Furnish with stop nut a-286 cres per ams 5731, passivate per qq-p-35, 140000 p.S.I. Min ams5529; coil spring 18-8 type 302 cres per astm a580, passivate; spring cup 18-8 type 300 cres per astm-a-555, astm-a-581 ams 5640; disc spring 17-7 ph cres per ams 5529, 240000 p.S.I. Min per ams 5529, passivate; also contains self-locking slug round per mil-f-18240

Properties:

Thread Class
3a
Thread Direction
Right-hand
Fastener Length
2.030 inches
Head Style
Hexagon
Head Height
0.193 inches
Width Between Flats
0.375 inches
Internal Drive Style
Hexagon
Thread Diameter
0.190 inches
Width Across Flats
0.156 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
160000 pounds per square inch
Material
Iron alloy 660 fastener
Material
Steel comp 301 primary washer or steel comp 302 primary washer or steel comp 304 primary washer or steel comp 316 primary washer
Material
Steel comp 301 stand-off or steel comp 302 stand-off or steel comp 304 stand-off or steel comp 316 stand-off or steel comp 303 plus x stand-off or steel comp 303se stand-off or steel comp 303pb stand-off
Material Specification
Ams 5731 assn standard single material response fastener
Material Specification
Mil-s-5059 military specification single material response primary washer
Surface Treatment
Cadmium fastener
Surface Treatment
Passivate primary washer
Surface Treatment
Passivate stand-off
Surface Treatment Specification
Qq-p-35 federal specification single treatment response primary washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response stand-off
Surface Treatment Specification
Qq-p-416 type 1 cl 2 federal specification single treatment response fastener
Thread Series Designator
Unf
NSN
5305-01-264-5836
Part Number
CA28121-2
Description
Screw Assembly,panel
CAGE
29372

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

Part CA28121-2 NSN 5305-01-264-5836

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
33044
FIIG:
A003B0
Concept No.:
App. Key:
SU
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:
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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