Model: ST3M774A4

Assembled Washe Self-locking Nut

Special Features:

Concave self-aligning washer

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.515 inches
Counterbore Diameter
0.277 inches nut and 0.287 inches nut
Lubrication
Dry film lubricant
Overall Height
0.292 inches
Nut Style
Flat
Nut Height
0.090 inches
Nut Counterbore Depth
0.065 inches nut
Width Across Flats
Between 0.305 inches and 0.313 inches
Tempurature Rating
450.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Material
Iron alloy 660 nut
Material
Iron alloy 660 washer
Material Specification
Ams 5732 assn standard single material response nut or ams 5737 assn standard single material response nut
Material Specification
Ams 5732 assn standard single material response washer or ams 5737 assn standard single material response washer
Surface Treatment
Passivate nut
Surface Treatment
Passivate washer
NSN
5310-01-131-9867
Part Number
ST3M774A4
Description
Nut,self-locking,assembled Washe
CAGE
76301

A nut on which has been assembled a nonremovable washer. An integral feature is incorporated for locking on the threads of a mating member.

Part ST3M774A4 NSN 5310-01-131-9867

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29736
FIIG:
A021A0
Concept No.:
1
App. Key:
BG
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:
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:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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