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PVC Milspec Belleville Washers - Request for Information


PVC: is the abbreviation for polyvinyl chloride, a commonly used thermoplastic.  PVC is chemically resistant and maintains integrity and stability in applications where metal would otherwise corrode. 


Milspec: Military standards are most often defined by an efficient operation and substantial longevity in inhospitable or rugged conditions and environments.  


Belleville Washers: are non-flat, cupped washes that provide load-bearing and deflection properties due to a subtitle conical shape.  In addition to introducing spring and flexibility characteristics to the seal, Belleville washers function as locking devices in low dynamic load applications. 

Washers: circular hardware used for spacing, load distribution, sealing and vibration reduction.  Washers are produced through stamping and shaping a variety of materials including various metal, plastic, rubber and fiber.  

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TitlePart NumberQTY-OHDRAWINGOUTER DIAMINNER DIAMTHICK
NAS620C5LP NAS620C5LP 44700REV 7 0.2380.1280.016
N402P50 N402P50 4702.4801.0420.140
NAS1149D0332H NAS1149D0332H 41320REV 4 0.4380.2030.032
NAS620C10L NAS620C10L 178700REV 7 0.3540.1950.032
N400P2 N400P2 860000.1510.0790.022
NAS620A6 NAS620A6 45700REV 7 0.2670.1430.032
AN960-XC1216 AN960-XC1216 2250REV 21 1.3120.7650.090
TitleOutside Dia.Inside Dia.Thickness
650-2028-0050.4270.2540.005
650-4737-0570.8730.6910.057
650-1020-0330.2910.1750.033
650-5451-0102.82.5590.01
650-250-0160.2820.1150.016
300-2196-0591.440.4870.059
TitleOutside Dia.Inside Dia.ThicknessMaterial
475-459-0310.8620.5720.031Aluminum

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