Model: AD03A251-7

Hexagon Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Nut Style
Hexagon
Nut Height
Between 0.271 inches and 0.291 inches
Width Across Flats
Between 0.615 inches and 0.627 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
20
Hardness Rating
Between 34.0 rockwell c and 38.0 rockwell c
Thread Size
0.438 inches
Bearing Surface Type
Chamfered
Material
Steel comp 4130 except insert
Material Specification
Mil-s-6758 military specification single material response except insert
Surface Treatment
Cadmium except insert and chromate except insert
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response except insert
NSN
5310-01-439-3777
Part Number
AD03A251-7
Description
Nut,self-locking,hexagon
CAGE
92595

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part AD03A251-7 NSN 5310-01-439-3777

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05277
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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

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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