Model: A51B20525-1

Dodecagon Plain Nut
Description:

3b thread class, right-hand , plain, dodecagon nut style, 0.312 inches nut height, 2.062 inches width across flats, unc thread series.

Special Features:

Prevailing torque all metal design locking feature

Properties:

Thread Class
3b
Thread Direction
Right-hand
Nut Style
Plain, dodecagon
Nut Height
0.312 inches
Width Across Flats
2.062 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
12
Hardness Rating
Between 38.0 rockwell c and 45.0 rockwell c
Thread Size
0.562 inches
Countersink Angle
90.0 degrees nut
Bearing Surface Type
Chamfered
Bearing Surface Finish
125.0 microinches
Material
Steel comp 630
Material Specification
Ams 5643 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
NSN
5310-00-003-3887
Part Number
A51B20525-1
Description
Nut,plain,dodecagon
CAGE
61174

A nut, flat on top and bottom, having 12 flat sides. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).

Part A51B20525-1 NSN 5310-00-003-3887

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01856
FIIG:
A021A0
Concept No.:
1
App. Key:
AG
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:
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:

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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