Model: LL-HX-4624

Panel Screw Assembly

Properties:

Thread Class
3a
Thread Direction
Right-hand
Fastener Length
0.840 inches
Head Style
Knurled no. 1
Head Diameter
0.531 inches
Head Height
0.530 inches
Internal Drive Style
Slot
Material Accommodated Thickness
Between 0.155 inches and 0.217 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
140000 pounds per square inch
Material
Iron alloy 660 primary washer
Material
Steel comp 301 secondary washer
Material
Steel comp 302 fastener or steel comp 304 fastener or steel comp 305 fastener or steel comp 316 fastener or steel comp 384 fastener or iron alloy 660 fastener
Material
Steel comp 303 head
Material
Steel comp 302 spring
Material
Steel comp 304 stand-off
Material Specification
Ams 5525 assn standard single material response primary washer
Material Specification
Astm a313 assn standard single material response spring
Material Specification
Mil-s-5059 military specification single material response secondary washer
Material Specification
Qq-s-763 federal specification single material response stand-off
Surface Treatment
Passivate
Special Test Features
Special quality control testing
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Test Data Document
81349-mil-p-23199 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unf
NSN
5305-01-317-0435
Part Number
LL-HX-4624
Description
Screw Assembly,panel
CAGE
14153

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 LL-HX-4624 NSN 5305-01-317-0435

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:
--
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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