Model: 2DD181

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 0.438 inches and 0.468 inches
End Application
Nsn 2320-01-304-2277 pls (palletized loading system)
Width Across Flats
Between 0.551 inches and 0.565 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unf
Thready Qty Per Inch (tpi)
24
Thread Size
0.375 inches
Bearing Surface Type
Chamfered
Material
Plastic polyamide locking insert
Material
Steel nut
Material Specification
Gm 284-m fscm 24617 mfr ref single material response nut
Surface Treatment
Cadmium except insert or zinc except insert
Surface Treatment Specification
Gm 4252-m code 20u32 fscm 24617 mfr ref all treatment responses except insert
NSN
5310-01-058-3353
Part Number
2DD181
Description
Nut,self-locking,hexagon
CAGE
45152

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 2DD181 NSN 5310-01-058-3353

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:
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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