Model: FT1255HS-4-3-9

Panel Screw Assembly

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.250 inches
Fastener Length
Between 0.542 inches and 0.582 inches
Head Style
Flat chamfer
Head Diameter
Between 0.160 inches and 0.200 inches
Head Height
0.169 inches
Internal Drive Style
Hexagon
Material Accommodated Thickness
Between 0.106 inches and 0.116 inches
Thread Diameter
0.112 inches
Width Across Flats
0.094 inches
Thready Qty Per Inch (tpi)
40
Material
Aluminum alloy 7075 stand-offsteel comp 303 plus x fastener or steel comp 303 fastener or steel comp 303se fastener
Material Specification
Qq-a-225/9 federal specification single material response stand-off
Surface Treatment
Anodize stand-offcadmium fastener and chromate fastener
Surface Treatment Specification
Mil-a-8625 ty1 cl2 military specification single treatment response stand-offqq-p-416 ty2 cl2 federal specification single treatment response fastener
Thread Series Designator
Unc
NSN
5305-01-352-2191
Part Number
FT1255HS-4-3-9
Description
Screw Assembly,panel
CAGE
58794

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 FT1255HS-4-3-9 NSN 5305-01-352-2191

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:
0.2000lbs
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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