Model: 21724

Lock Washer

Properties:

Hole Diameter
Between 0.377 inches and 0.391 inches
Outside Diameter
Between 0.493 inches and 0.507 inches
Material Thickness
0.022 inches
End Application
W/s: sturgeon class ssn (637); radar set, lightweight 3d (an/tps-59); helicopter, mh-53e; transponder (tsec/kit-1a); interrogation computer (kir-1a); spruance class dd (963); los angeles class ssn (688); aircraft, c-2a (reprocured); forrestal class cv
Material
Steel
Surface Treatment
Nickel
Style Designator
Flat internal teeth
NSN
5310-00-261-7160
Part Number
21724
Description
Washer,lock
CAGE
10412

A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Part 21724 NSN 5310-00-261-7160

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
14218
FIIG:
A022B0
Concept No.:
1
App. Key:
A
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:
0.1000lbs
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:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318210000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel

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