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// TECHNICAL RESOURCES

MS25082 thin electrical hex nuts.

Find MS25082 part numbers, thread classes, material and finish details, thickness and hex dimensions. Filter the reference table and request pricing.

// DIMENSIONS & PART IDENTIFICATION

Nut thread, width across flats and height

Nut thread, width across flats and height
The face view identifies the threaded opening d and width across flats W. The side view identifies axial nut height H. Locking features and exact profiles are not shown.

Schematic only; not to scale. Letter labels are keys for this illustration. Use the applicable part specification for dimensions, tolerances and measurement conventions.

// PART IDENTIFICATION

Identify the nut and its configuration

MS25082 identifies thin electrical plain hex nuts with several thread series and hex envelopes. This table selects 50 steel/cadmium and 303-stainless/passivated configurations from the reviewed 2004 Amendment 1 table. The complete designation includes any material letter after the hyphen. Brass configurations are outside this selection.

// REFERENCE SIZES

MS25082 part-number and dimension table

Reference selections for purchasing identification and quotation. Webson confirms availability by inquiry; these rows do not indicate stocked inventory.

Scroll sideways to see all columns. The first column stays visible.

MS25082 reference nut dimensions
Part numberThreadThread series / classMaterial / finishWidth across flats limits (in)Thickness limits (in)Request pricing
MS25082-16-32UNC-2BSteel / cadmium plated0.302–0.3120.073–0.083Quote MS25082-1 →
MS25082-C16-32UNC-2B303 stainless / passivated0.302–0.3120.073–0.083Quote MS25082-C1 →
MS25082-28-32UNC-2BSteel / cadmium plated0.332–0.3440.073–0.083Quote MS25082-2 →
MS25082-C28-32UNC-2B303 stainless / passivated0.332–0.3440.073–0.083Quote MS25082-C2 →
MS25082-310-32UNF-2BSteel / cadmium plated0.362–0.3750.073–0.083Quote MS25082-3 →
MS25082-C310-32UNF-2B303 stainless / passivated0.362–0.3750.073–0.083Quote MS25082-C3 →
MS25082-1210-32UNF-2BSteel / cadmium plated0.241–0.2500.073–0.083Quote MS25082-12 →
MS25082-C1210-32UNF-2B303 stainless / passivated0.241–0.2500.073–0.083Quote MS25082-C12 →
MS25082-41/4-28UNF-2BSteel / cadmium plated0.428–0.4380.084–0.094Quote MS25082-4 →
MS25082-C41/4-28UNF-2B303 stainless / passivated0.428–0.4380.084–0.094Quote MS25082-C4 →
MS25082-131/4-32UNEF-2BSteel / cadmium plated0.302–0.3120.073–0.083Quote MS25082-13 →
MS25082-C131/4-32UNEF-2B303 stainless / passivated0.302–0.3120.073–0.083Quote MS25082-C13 →
MS25082-261/4-36UNS-2BSteel / cadmium plated0.302–0.3120.058–0.068Quote MS25082-26 →
MS25082-C261/4-36UNS-2B303 stainless / passivated0.302–0.3120.058–0.068Quote MS25082-C26 →
MS25082-141/4-40UNS-2BSteel / cadmium plated0.302–0.3120.058–0.068Quote MS25082-14 →
MS25082-C141/4-40UNS-2B303 stainless / passivated0.302–0.3120.058–0.068Quote MS25082-C14 →
MS25082-55/16-24UNF-2BSteel / cadmium plated0.545–0.5620.099–0.109Quote MS25082-5 →
MS25082-C55/16-24UNF-2B303 stainless / passivated0.545–0.5620.099–0.109Quote MS25082-C5 →
MS25082-235/16-32UNEF-2BSteel / cadmium plated0.423–0.4440.088–0.098Quote MS25082-23 →
MS25082-C235/16-32UNEF-2B303 stainless / passivated0.423–0.4440.088–0.098Quote MS25082-C23 →
MS25082-245/16-32UNEF-2BSteel / cadmium plated0.545–0.5620.073–0.083Quote MS25082-24 →
MS25082-C245/16-32UNEF-2B303 stainless / passivated0.545–0.5620.073–0.083Quote MS25082-C24 →
MS25082-63/8-24UNF-2BSteel / cadmium plated0.607–0.6250.099–0.109Quote MS25082-6 →
MS25082-C63/8-24UNF-2B303 stainless / passivated0.607–0.6250.099–0.109Quote MS25082-C6 →
MS25082-73/8-32UNEF-2BSteel / cadmium plated0.545–0.5620.073–0.083Quote MS25082-7 →
MS25082-C73/8-32UNEF-2B303 stainless / passivated0.545–0.5620.073–0.083Quote MS25082-C7 →
MS25082-203/8-32UNEF-2BSteel / cadmium plated0.545–0.5620.088–0.098Quote MS25082-20 →
MS25082-C203/8-32UNEF-2B303 stainless / passivated0.545–0.5620.088–0.098Quote MS25082-C20 →
MS25082-187/16-32UN-2BSteel / cadmium plated0.489–0.5000.088–0.098Quote MS25082-18 →
MS25082-C187/16-32UN-2B303 stainless / passivated0.489–0.5000.088–0.098Quote MS25082-C18 →
MS25082-257/16-32UN-2BSteel / cadmium plated0.545–0.5620.088–0.098Quote MS25082-25 →
MS25082-C257/16-32UN-2B303 stainless / passivated0.545–0.5620.088–0.098Quote MS25082-C25 →
MS25082-80.4688-32UNS-2BSteel / cadmium plated0.545–0.5620.073–0.083Quote MS25082-8 →
MS25082-C80.4688-32UNS-2B303 stainless / passivated0.545–0.5620.073–0.083Quote MS25082-C8 →
MS25082-210.4688-32UNS-2BSteel / cadmium plated0.545–0.5620.088–0.098Quote MS25082-21 →
MS25082-C210.4688-32UNS-2B303 stainless / passivated0.545–0.5620.088–0.098Quote MS25082-C21 →
MS25082-191/2-28UNEF-2BSteel / cadmium plated0.609–0.6250.104–0.114Quote MS25082-19 →
MS25082-C191/2-28UNEF-2B303 stainless / passivated0.609–0.6250.104–0.114Quote MS25082-C19 →
MS25082-151/2-32UN-2BSteel / cadmium plated0.545–0.5620.073–0.083Quote MS25082-15 →
MS25082-C151/2-32UN-2B303 stainless / passivated0.545–0.5620.073–0.083Quote MS25082-C15 →
MS25082-221/2-32UN-2BSteel / cadmium plated0.545–0.5620.088–0.098Quote MS25082-22 →
MS25082-C221/2-32UN-2B303 stainless / passivated0.545–0.5620.088–0.098Quote MS25082-C22 →
MS25082-105/8-18UNF-2BSteel / cadmium plated0.788–0.8120.134–0.144Quote MS25082-10 →
MS25082-C105/8-18UNF-2B303 stainless / passivated0.788–0.8120.134–0.144Quote MS25082-C10 →
MS25082-115/8-24UNEF-2BSteel / cadmium plated0.736–0.7500.099–0.109Quote MS25082-11 →
MS25082-C115/8-24UNEF-2B303 stainless / passivated0.736–0.7500.099–0.109Quote MS25082-C11 →
MS25082-1611/16-27UNS-2BSteel / cadmium plated0.788–0.8120.088–0.098Quote MS25082-16 →
MS25082-C1611/16-27UNS-2B303 stainless / passivated0.788–0.8120.088–0.098Quote MS25082-C16 →
MS25082-171-27UNS-2BSteel / cadmium plated1.088–1.1250.088–0.098Quote MS25082-17 →
MS25082-C171-27UNS-2B303 stainless / passivated1.088–1.1250.088–0.098Quote MS25082-C17 →

Dimensions are minimum–maximum limits in inches. Width across flats describes the nut, not the tolerance of a wrench or socket. Thickness is the nut’s axial height.

The thickness limits shown are calculated from the reviewed H nominal value and its ±0.005-inch tolerance. Across-flats values are the table’s listed minimum and maximum dimensions.

// ORDERING EXAMPLES

Read the complete designation

MS25082-3 and MS25082-12 both use 10-32 UNF-2B threads, but their widths across flats are 0.362–0.375 and 0.241–0.250 inch respectively. MS25082-C3 preserves the -3 geometry while selecting passivated 303 stainless. A common thread alone does not identify the same hex envelope.

// MATERIAL AND FINISH

Preserve the material and finish

The selected bare numeric dash numbers identify cadmium-plated steel. C followed by the size dash number identifies passivated Type 303 stainless steel in the reviewed table. Preserve the C: MS25082-1 and MS25082-C1 are different material/finish configurations. Include the required coating specification and issue with the quote.

// FAMILY COMPARISON

Compare thread, envelope and part status

Thickness matters even when the thread and hex match. MS25082-7 and -20 both have 3/8-32 UNEF-2B threads and the same across-flats limits, but use 0.078 and 0.093-inch nominal thicknesses, each with ±0.005-inch tolerance. The 0.4688-32 entries retain the drawing’s decimal nominal thread reference; do not round that callout to another nominal size.

// DRAWING REQUIREMENTS

Match the governing drawing issue

Dimensions summarize MS25082P with Amendment 1, pages 1–3, 10 September 2004.

This page identifies the historical 2004 dimensional issue reviewed. A 2011 amendment and later validation notices exist; verify the issue required by your drawing or purchase order. A validation date is separate from the dimensional-issue date. Canceled -9 selections are not included.

The controlling drawing and specification determine full dimensions, material, coating, inspection and documentation requirements. Include the quantity, required delivery date and controlling issue with your inquiry.

// BUYER CHECKLIST

Prepare the requirement for quotation

// SOURCE WITH WEBSON

Have a part number or bill of material?

Send the complete designation, quantity, required delivery date and documentation requirements. Webson will review your requirement for quotation.

Certified distribution. Requirements reviewed.

Webson is an AS9120B and ISO 9001:2015 certified distributor. Include required certificates, lot traceability and source restrictions with your inquiry so documentation and inspection requirements can be reviewed for the order.