Model: 57991-507-7

Shouldered Stud

Special Features:

Design analysis; nuclear hardness critical

Properties:

Thread Class
3a nut thread
Thread Class
3a stud thread
Thread Direction
Right-hand nut thread
Thread Direction
Right-hand stud thread
Thread Length
0.272 inches stud thread
Thread Length
0.500 inches nut thread and 0.620 inches nut thread
Thread Length
0.500 inches and 0.620 inches nut thread
Shoulder Length
0.050 inches
Overall Length
2.370 inches
Nut End Shank Length
0.088 inches
Distance Across Flats
Between 0.302 inches and 0.312 inches
Thready Qty Per Inch (tpi)
32 nut thread
Thready Qty Per Inch (tpi)
32 stud thread
Hardness Rating
320.0 vickers or firth diamond pyramid
Thread Size
0.164 inches nut thread
Thread Size
0.164 inches stud thread
Criticality Code Justification
Feat
Stud End Shank Length
1.340 inches
Stud End Shank Diameter
0.164 inches
Surface Finish
125.0 microinches
Nut End Shank Diameter
Between 0.120 inches and 0.130 inches
Material
Steel
Nuclear Hardness Critical Feature
Hardened
Style Designator
Shouldered
Thread Series Designator
Unjc nut thread
Thread Series Designator
Unjc stud thread
NSN
5307-00-126-0523
Part Number
57991-507-7
Description
Stud,shouldered
CAGE
94756

Part 57991-507-7 NSN 5307-00-126-0523

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15946
FIIG:
A051A0
Concept No.:
App. Key:
C
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:
AH
CRITL:
Y

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
2
SHC:
2
ACC:
Trailers/Vehicles

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