Model: S-20255

Round Self-locking Nut

Properties:

Thread Pitch Diameters
+1.3399/+1.3439 inches
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Drive Point Depth
0.094 inches
Nut Style
Round
Nut Diameter
2.057 inches
Nut Thickness
0.438 inches
Drive Point Width
0.188 inches
Drive Point Quantity
4
Tempurature Rating
Between -60.0 degrees fahrenheit and 250.0 degrees fahrenheit
Thread Series
Uns
Thready Qty Per Inch (tpi)
18
Hardness Rating
Between 66.0 rockwell b and 92.0 rockwell b
Thread Size
1.376 inches
Countersink Angle
90.0 degrees both ends and 120.0 degrees both ends
Material
Plastic polyamide locking insert
Material
Steel comp 1015 nut or steel comp 1016 nut or steel comp 1017 nut or steel comp 1018 nut or steel comp 1019 nut or steel comp 1020 nut or steel comp 1021 nut or steel comp 1022 nut or steel comp 1023 nut or steel comp 1025 nut or steel comp 1026 nut or steel comp 1029 nut or steel comp 1030 nut or steel comp 1031 nut or steel comp 1033 nut or steel comp 1034 nut or steel comp 1035 nut or steel comp 1116 nut or steel comp 1117 nut or steel comp 1118 nut or steel comp 1212 nut or steel comp 1213 nut or steel comp 1215 nut
Surface Treatment
Cadmium nut and chromate nut or passivate nut
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification 1st treatment response nut or qq-p-35 federal specification 2nd treatment response nut
NSN
5310-01-155-4373
Part Number
S-20255
Description
Nut,self-locking,round
CAGE

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protusions, slots or splines in or on the periphery or in the face opposite the bearing surface. An integral feature is incorporated for locking on the threads of a mating member. Do not use if a more specific item name applies. Excludes collar, pin-rivet, threaded; insert, screw thread; nut (1), sleeve; nut(1), plain, cap; and turnbuckle body.

Part S-20255 NSN 5310-01-155-4373

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15895
FIIG:
A021A0
Concept No.:
1
App. Key:
CA
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
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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