Model: 3M935-3B5

Panel Screw Assembly

Special Features:

Encapsulated 0 ring, metel 301, 304 cres, per mil-s-5059, o ring nitrile per mil-r-7362 type 2

Properties:

Thread Class
3a
Thread Direction
Right-hand
Fastener Length
Between 0.617 inches and 0.637 inches
Head Style
Knurled no. 1
Head Diameter
Between 0.521 inches and 0.541 inches
Head Height
Between 0.580 inches and 0.600 inches
Internal Drive Style
Slot
Material Accommodated Thickness
Between 0.063 inches and 0.125 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
140000 pounds per square inch
Material
Aluminum alloy 6061 stand-off
Material
Iron alloy 660 fastener
Material
Steel comp 302 spring
Material Specification
Ams5737 assn standard single material response fastener
Material Specification
Astm a580 assn standard single material response spring
Material Specification
Qq-a-225/8 federal specification single material response stand-off
Surface Treatment
Anodize stand-off
Surface Treatment
Passivate fastener
Surface Treatment
Passivate spring
Surface Treatment Specification
Mil-a-8625, type 1 class 1 military specification single treatment response stand-off
Surface Treatment Specification
Qq-p-35 federal specification single treatment response fastener
Surface Treatment Specification
Qq-p-35 federal specification single treatment response spring
Thread Series Designator
Unf
NSN
5305-01-241-2657
Part Number
3M935-3B5
Description
Screw Assembly,panel
CAGE
76301

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 3M935-3B5 NSN 5305-01-241-2657

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:
0.1000lbs
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:
093490
UFC:
50270
LTL:
50.0
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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