Model: 4037881

Double Hexagon Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Nut Style
Double hexagon
Nut Height
0.473 inches
Width Across Flats
Between 0.430 inches and 0.439 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
24
Thread Size
0.312 inches
Bearing Surface Type
Chamfered
Material
Stainless steel
Material Specification
Ams 5709 assn standard single material response
Surface Treatment
Silver
Surface Treatment Specification
Ams2411 assn standard single treatment response
NSN
5310-01-087-0301
Part Number
4037881
Description
Nut,self-locking,double Hexagon
CAGE
11449

A nut having 12 drive points and 24 sides. The bearing surface may be washer faced. An integral locking feature is incorporated in the design of the head or in the threads.

Part 4037881 NSN 5310-01-087-0301

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05276
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:
S
ESD:
ESD:
MMAC:
NZ
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
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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