Model: 841580-77

Panel Screw Assembly

Properties:

Thread Class
2a
Thread Direction
Right-hand
Fastener Length
1.305 inches
Head Style
Knurled no. 1
Head Diameter
0.420 inches
Head Height
0.495 inches
Internal Drive Style
Slot
Material Accommodated Thickness
0.020 inches and 0.030 inches
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Material
Aluminum alloy 6061 head
Material
Steel comp 301 primary washer
Material
Steel comp 304 fastener
Material
Steel comp 304 stand-off
Material
Steel comp 631 spring
Material
Steel secondary washer
Surface Treatment
Anodize head
Surface Treatment
Cadmium secondary washer
Surface Treatment
Passivate fastener
Surface Treatment
Passivate primary washer
Surface Treatment
Passivate spring
Surface Treatment
Passivate stand-off
Thread Series Designator
Unc
NSN
5305-01-446-5087
Part Number
841580-77
Description
Screw Assembly,panel
CAGE
06481

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 841580-77 NSN 5305-01-446-5087

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:
--
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:
096640
UFC:
50600
LTL:
70.0
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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