Model: 841581-51

Panel Screw Assembly

Properties:

Thread Class
Nc
Thread Direction
Right-hand
Fastener Length
Between 0.922 inches and 0.952 inches
Head Style
Knurled no. 1
Head Diameter
Between 0.289 inches and 0.329 inches
Head Height
Between 0.922 inches and 0.952 inches
Internal Drive Style
Cross recess type 1
Material Accommodated Thickness
Between 0.062 inches and 0.102 inches
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Material
Iron alloy 660 fastener
Material
Steel comp 302 stand-off
Material
Steel comp 302 primary washer
Material
Steel comp 302 spring
Material
Steel comp 304 secondary washer
Surface Treatment
Oxide fastener
Surface Treatment
Oxide primary washer
Surface Treatment
Oxide secondary washer
Surface Treatment
Oxide stand-off
Surface Treatment
Passivate spring
Thread Series Designator
Unc
NSN
5305-01-446-5325
Part Number
841581-51
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 841581-51 NSN 5305-01-446-5325

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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