Model: CA28099-4-11T

Panel Screw Assembly

Special Features:

Hardness rating 35.0 min. And 43.0 max. On lockwasher; apply a solid filmlubricant to the screw threads only in accord with mil-l-8937

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
Between 1.525 inches and 1.555 inches
Head Style
Hexagon
Head Height
Between 0.172 inches and 0.190 inches
Width Between Flats
Between 0.367 inches and 0.375 inches
Material Accommodated Thickness
0.625 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
175000 pounds per square inch
Material
Iron alloy 660 fastener
Material Specification
Ams 5629 assn standard single material response bearing surface of head
Material Specification
Ff-w-84 federal specification single material response secondary washer
Material Specification
Mil-s-5059 military specification single material response primary washer
Material Specification
Qq-s-763 federal specification single material response stand-off
Material Specification
Qq-w-423 federal specification single material response spring
Surface Treatment
Passivate bearing surface of head
Surface Treatment
Passivate primary washer
Surface Treatment
Passivate secondary washer
Surface Treatment
Passivate spring
Surface Treatment
Passivate stand-off
Surface Treatment Specification
Qq-p-35 federal specification single treatment response bearing surface of head
Surface Treatment Specification
Qq-p-35 federal specification single treatment response primary washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response secondary washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response spring
Surface Treatment Specification
Qq-p-35 federal specification single treatment response stand-off
Thread Series Designator
Unf
NSN
5305-01-161-2153
Part Number
CA28099-4-11T
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 CA28099-4-11T NSN 5305-01-161-2153

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:
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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