Model: 581R275H25

Panel Screw Assembly

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.460 inches
Fastener Length
0.845 inches
Head Style
Fillister
Head Diameter
Between 0.285 inches and 0.315 inches
Head Height
0.115 inches
Material Accommodated Thickness
0.450 inches
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
70000 pounds per square inch
Material
Steel comp 303 stand-off
Material
Steel comp 302 spring
Material
Steel comp 305 fastener
Material Specification
Qq-s-763 cond b federal specification single material response spring
Material Specification
Qq-s-764 cond a federal specification single material response stand-off
Material Specification
Qq-s-763 federal specification single material response fastener
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unc
NSN
5305-01-082-7201
Part Number
581R275H25
Description
Screw Assembly,panel
CAGE
97942

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 581R275H25 NSN 5305-01-082-7201

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:
U
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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