Model: A51H20581-13

Externally Threaded Ring
Description:

3a thread class, right-hand , not casehardened casehardening indicator, 0.030 inches chamfer length, 1.250 inches overall length.

Properties:

Thread Class
3a
Thread Direction
Right-hand
Casehardening Indicator
Not casehardened
Chamfer Angle In Deg
45.0
Chamfer Length
0.030 inches
Overall Length
1.250 inches
Diameter
Between 2.900 inches and 2.910 inches
Thread Size
3.250-12
Bore Diameter
Between 2.900 inches and 2.910 inches
Bore Shape
Straight
Screw Thread Series Designator
Unj
Drive Type
Lug face
Material Hardness Rating
Between 38.0 rockwell c and 45.0 rockwell c
Thread Location
End opposite drive end
Accommodation Type And Quantity
4 lugs
Angle Between Accommodations In Deg
90.0
Radius From Geometric Axis To Accommodation
Between 1.575 inches and 1.595 inches
Beveled Thread
Included
Bore Annular Internal Serration
Not included
Setscrew Locking Notch
Not included
Bore Edge Process
Chamfered
Process End Location
End opposite drive end
Height
Between 3.230 inches and 3.270 inches
Material
Steel, ams 5659
Material
Steel comp xm-12
Surface Treatment
Passivated, mil-s-5002
Surface Treatment
Passivated, mil-s-5002
NSN
5365-00-008-5691
Part Number
A51H20581-13
Description
Ring,externally Threaded
CAGE
61174

Part A51H20581-13 NSN 5365-00-008-5691

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
08417
FIIG:
T252-D
Concept No.:
App. Key:
DA
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
095190
UFC:
49790
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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