Model: H31-8BAC

Hexagon Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Nut Style
Hexagon
Nut Height
0.328 inches
End Application
E-3a; w/s: helicopter, chinook, ch-47; support equipment, c-135 aircraft; aircraft, stratolifter c-135; engine, aircraft, tf33-100 (e3a/b/c); aircraft, awacs, e-3a; aircraft mh-47e special operations aircraft
Width Across Flats
Between 0.740 inches and 0.752 inches
Tempurature Rating
900.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
20
Hardness Rating
32.0 rockwell c
Thread Size
0.500 inches
Bearing Surface Type
Flat
Material
Iron alloy 660
Material Specification
Ams 5735 comp a286 assn standard single material response
Precious Material And Location
All sirfaces silver
Surface Treatment
Silver
Surface Treatment Specification
Ms2410 assn standard single treatment response
NSN
5310-01-050-1104
Part Number
H31-8BAC
Description
Nut,self-locking,hexagon
CAGE
15653

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 H31-8BAC NSN 5310-01-050-1104

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:
S
ESD:
ESD:
MMAC:
SX
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:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
013540
UFC:
05680
LTL:
70.0
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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