ASME B18.21.1 Regular Spring-Lock Washer 1-7/8 in – Carbon Steel – Plain Manufacturer: TTBOLT SKU: TTB-ASMEB18.21.1-REG-1875-CS-PL Add to compare list Email a friend ASME B18.21.1 Regular Helical Spring-Lock WasherNominal size: 1-7/8 inInside diameter: 1.883–1.914 inMaximum outside diameter: 2.811 inMinimum mean section thickness: 0.422 inMinimum section width: 0.427 inMinimum bearing width: 0.299 inMaterial: Carbon SteelFinish: PlainTheoretical mass: 173.607 g/pc ASME B18.21.1 Regular Spring-Lock Washer 1-7/8 in – Carbon Steel – Plain is an inch-series Regular Helical Spring-Lock Washer conforming to the dimensional requirements of ASME B18.21.1, Table 1. This exact catalog variant has nominal size 1-7/8 in, material Carbon Steel, Regular series, and Plain finish.Dimensions of this ASME B18.21.1 washerNominal washer size1-7/8 inInside diameter1.883–1.914 inMaximum outside diameter2.811 inMinimum mean section thickness0.422 inMinimum section width0.427 inMinimum bearing width0.299 inMaterialCarbon SteelSeriesRegularFinishPlainMass per piece173.607 g/pcEngineering and ordering notesTable dimensions are in inches and apply before coating. The word “lock” is the historical product-family name and does not guarantee permanent locking of a bolted joint. Confirm the required material grade, finish specification, coating thickness, joint preload, vibration conditions, and service environment before ordering. For electroplated carbon-steel washers, hydrogen-embrittlement relief and the required post-plating test must be specified and verified. The displayed mass is a theoretical estimate based on the tabulated section geometry; final manufactured mass may vary within dimensional and coating tolerances. Technical drawing & data Download technical PDF Technical data sheet TTBoltIndustrial Fasteners Engineering Data Sheet DocumentTechnical Data Sheet StandardASMEB18.21.1 GradeRegular Issued2026-10-04 فارسی English واشر فنری قفلی سری معمولی ASME B18.21.1 سایز 1-7/8 اینچ، فولاد کربنی، ساده 1-7/8 in | Regular | پوشش Plain جدول ابعادی پارامترنماد حداقلحداکثر / اسمی واحد قطر اسمیd-1.875in قطر خارجیD-2.811in قطر داخلیd11.8831.914in ضخامتh0.422-in مشخصات محصول رزوه1-7/8 جهت رزوهراستگرد گریدRegular پوششPlain متریالCarbon Steel فرم رزوهUnified 60 deg یادداشتهای فنی 1. تمام ابعاد بر حسب اینچ هستند مگر آنکه خلاف آن ذکر شده باشد. 2. تصاویر محصول از مدل Master در SolidWorks و با همان پارامترهای این ردیف تولید میشوند. 3. مقادیر حداقل و حداکثر از جدول ابعادی ASMEB18.21.1 گرفته شدهاند؛ جایی که استاندارد تلرانس تعریف نکرده، تنها مقدار اسمی درج شده است. 4. وزنهای درجشده در فروشگاه نظریاند و برای برآورد قیمت کاربرد دارند. شماره قطعهTTB-ASMEB18.21.1-REG-1875-CS-PL Regular Helical Spring-Lock Washer - ASMEB18.21.1 1-7/8 in | Regular | Plain Finish DIMENSION TABLE ParameterSymbol MinMax / Nominal Unit Nominal diameterd-1.875in Outside diameterD-2.811in Inside diameterd11.8831.914in Thicknessh0.422-in PRODUCT DATA Thread1-7/8 Thread directionRight hand GradeRegular FinishPlain MaterialCarbon Steel Thread formUnified 60 deg TECHNICAL NOTES 1. All dimensions are in inches unless stated otherwise. 2. Product views are generated from the SolidWorks master using the parameters of this row. 3. Minimum and maximum values are taken from the ASMEB18.21.1 dimension table; where the standard defines no tolerance, only the nominal value is shown. 4. Catalog weights are theoretical and intended for price estimation. Part numberTTB-ASMEB18.21.1-REG-1875-CS-PL Products specifications Attribute name Attribute value Standard ASME B18.21.1 Product Type Regular Helical Spring-Lock Washer Nominal Size 1-7/8 in Series Regular Inner Diameter Range 1٫883–1٫914 in Maximum Outer Diameter 2٫811 in Minimum Mean Section Thickness 0٫422 in Minimum Section Width 0٫427 in Minimum Bearing Width 0٫299 in Material Carbon Steel Finish Plain Unit System in Estimated Weight 173٫607 g/pc