Model: 57A5A28-2

Hexagon Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Nut Style
Hexagon
Nut Height
0.109 inches
Width Across Flats
0.250 inches
Tempurature Rating
Between -55.0 degrees celsius and 120.0 degrees celsius
Thread Series
Unc
Thready Qty Per Inch (tpi)
40
Thread Size
0.112 inches
Bearing Surface Type
Chamfered
Material
Plastic polyamide locking insert
Material
Steel comp 303 nut or steel comp 303se nut or steel comp 303 plus x nut
Material Specification
Ams 5640 assn standard all material responses nut
NSN
5310-00-208-9261
Part Number
57A5A28-2
Description
Nut,self-locking,hexagon
CAGE
02387

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 57A5A28-2 NSN 5310-00-208-9261

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
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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