Model: 21AX657

Round Plain Nut

Properties:

Thread Pitch Diameters
+2.5049/+2.5103 inches
Thread Direction
Left-hand
Small End Diameter
Between 2.680 inches and 2.700 inches
Drive Point Depth
Between 0.240 inches and 0.260 inches
Nut Style
Round
Nut Diameter
Between 4.240 inches and 4.260 inches
Nut Thickness
Between 0.490 inches and 0.510 inches
Drive Point Width
Between 0.490 inches and 0.510 inches
Undercut Thickness
Between 0.110 inches and 0.130 inches
Drive Point Quantity
4
Thread Series
Uns
Thready Qty Per Inch (tpi)
12
Thread Size
2.559 inches
Material
Steel
NSN
5310-00-333-7558
Part Number
21AX657
Description
Nut,plain,round
CAGE
76040

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 21AX657 NSN 5310-00-333-7558

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15887
FIIG:
A021A0
Concept No.:
1
App. Key:
AY
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:
U
ESD:
ESD:
MMAC:
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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