Model: 12387349-31

Hexagon Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design or prevailing torque with nonmetallic insert
Nut Style
Hexagon
Nut Height
Between 0.212 inches and 0.328 inches
End Application
W/s: m1a2 abrams tank, 2350-01-328-5964 (eaa cmbt85pk3); tank, abrams m-1; m1a2 heavy assault bridge (hab), wolverine, 5420-01-430-4247; m1a2 system enhancement prog, 2350-01-328-5964 (eaa cmbt85sep); abrams m1 engine
Width Across Flats
Between 0.428 inches and 0.438 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unc
Thready Qty Per Inch (tpi)
20
Thread Size
0.250 inches
Bearing Surface Type
Chamfered or washer faced
Material
Plastic nylon locking insert
Material
Steel except insert
Surface Treatment
Zinc and chromate
Surface Treatment Specification
Astm b633, type 2, class 3 assn standard single treatment response
NSN
5310-01-378-7587
Part Number
12387349-31
Description
Nut,self-locking,hexagon
CAGE
19207

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 12387349-31 NSN 5310-01-378-7587

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

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:
713
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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