Model: NAS577B20A

Barrel Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Lubrication
Dry film lubricant
Nut Style
Floating self-locking barrel
Nut Diameter
Between 2.119 inches and 2.122 inches
Nut Length
Between 2.342 inches and 2.362 inches
Barrel Height
Between 1.310 inches and 1.320 inches
Nut Height
1.813 inches
Thread Series
Unjf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
12
Hardness Rating
Between 39.0 rockwell c and 46.0 rockwell c
Thread Size
1.250 inches
Material
Steel comp 8740 or steel comp 4340
Material Specification
Mil-s-6049 military specification 1st material response or ms 6322 federal specification single material response or mil-s-8844, cl 1 military specification 2nd material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
Specification Data
80205-nas577 professional/industrial association standard
NSN
5310-01-210-3874
Part Number
NAS577B20A
Description
Nut,self-locking,barrel
CAGE

A nut of cylindrical or partly cylindrical cross-section with integral threads perpendicular to the axial centerline. Ends may be flat or flanged. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, round.

Part NAS577B20A NSN 5310-01-210-3874

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15891
FIIG:
A021A0
Concept No.:
1
App. Key:
BH
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:
1.0000lbs
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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