Model: 512091

Extended Washer Self-locking Nut
Description:

+0.2884/+0.2920 inches thread pitch diameters, right-hand , prevailing torque all metal design locking feature, 0.480 inches washer outside diameter.

Properties:

Thread Pitch Diameters
+0.2884/+0.2920 inches
Thread Pitch Diameters
+0.2884 to 0.2920 inches
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
Between 0.480 inches and 0.490 inches
Overall Height
Between 0.326 inches and 0.336 inches
Nut Style
Double hexagon
Washer Thickness
Between 0.045 inches and 0.055 inches
Width Across Flats
Between 0.367 inches and 0.376 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
24
Hardness Rating
Between 35.0 rockwell c and 42.0 rockwell c
Thread Size
0.312 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Iron alloy 660
Material Specification
Ams 5737 assn standard single material response
Precious Material And Location
silver
Precious Material
Silver
Surface Treatment
Silver
Surface Treatment Specification
Ams 2410 assn standard single treatment response
NSN
5310-00-016-5781
Part Number
512091
Description
Nut,self-locking,extended Washer
CAGE
77445

A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 512091 NSN 5310-00-016-5781

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29729
FIIG:
A021A0
Concept No.:
1
App. Key:
BS
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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
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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