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// TECHNICAL RESOURCES

MS35649 coarse-thread hex machine-screw nuts.

Find MS35649 nut part numbers, thread sizes, material and finish details, thickness and hex dimensions. Filter the table and request pricing for a selected part.

// 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 family

MS35649 covers plain hexagon machine-screw nuts with UNC-2B internal threads. This selection includes 37 material and finish configurations from 2-56 through 3/8-16. These are plain nuts; they do not provide the prevailing-torque locking feature found in the MS21042 or MS21044 families.

// REFERENCE SIZES

MS35649 part-number and dimension table

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

MS35649 reference nut dimensions
Part numberThreadMaterial / finishWidth across flats limits (in)Thickness limits (in)Request pricing
MS35649-2222-56Carbon steel / cadmium0.180–0.1870.057–0.066Quote MS35649-222 →
MS35649-232-56Carbon steel / phosphate0.180–0.1870.057–0.066Quote MS35649-23 →
MS35649-2242-56CRES / passivated0.180–0.1870.057–0.066Quote MS35649-224 →
MS35649-225B2-56Brass / black oxide0.180–0.1870.057–0.066Quote MS35649-225B →
MS35649-225T2-56Brass / tin0.180–0.1870.057–0.066Quote MS35649-225T →
MS35649-2424-40Carbon steel / cadmium0.241–0.2500.087–0.098Quote MS35649-242 →
MS35649-434-40Carbon steel / phosphate0.241–0.2500.087–0.098Quote MS35649-43 →
MS35649-2444-40CRES / passivated0.241–0.2500.087–0.098Quote MS35649-244 →
MS35649-245B4-40Brass / black oxide0.241–0.2500.087–0.098Quote MS35649-245B →
MS35649-245T4-40Brass / tin0.241–0.2500.087–0.098Quote MS35649-245T →
MS35649-2626-32Carbon steel / cadmium0.302–0.3120.102–0.114Quote MS35649-262 →
MS35649-636-32Carbon steel / phosphate0.302–0.3120.102–0.114Quote MS35649-63 →
MS35649-2646-32CRES / passivated0.302–0.3120.102–0.114Quote MS35649-264 →
MS35649-265B6-32Brass / black oxide0.302–0.3120.102–0.114Quote MS35649-265B →
MS35649-265T6-32Brass / tin0.302–0.3120.102–0.114Quote MS35649-265T →
MS35649-2828-32Carbon steel / cadmium0.332–0.3440.117–0.130Quote MS35649-282 →
MS35649-838-32Carbon steel / phosphate0.332–0.3440.117–0.130Quote MS35649-83 →
MS35649-2848-32CRES / passivated0.332–0.3440.117–0.130Quote MS35649-284 →
MS35649-286B8-32Brass / black oxide0.332–0.3440.117–0.130Quote MS35649-286B →
MS35649-286T8-32Brass / tin0.332–0.3440.117–0.130Quote MS35649-286T →
MS35649-20210-24Carbon steel / cadmium0.362–0.3750.117–0.130Quote MS35649-202 →
MS35649-10310-24Carbon steel / phosphate0.362–0.3750.117–0.130Quote MS35649-103 →
MS35649-20410-24CRES / passivated0.362–0.3750.117–0.130Quote MS35649-204 →
MS35649-205B10-24Brass / black oxide0.362–0.3750.117–0.130Quote MS35649-205B →
MS35649-205T10-24Brass / tin0.362–0.3750.117–0.130Quote MS35649-205T →
MS35649-22521/4-20Carbon steel / cadmium0.423–0.4370.178–0.193Quote MS35649-2252 →
MS35649-22541/4-20CRES / passivated0.423–0.4370.178–0.193Quote MS35649-2254 →
MS35649-2255B1/4-20Brass / black oxide0.423–0.4370.178–0.193Quote MS35649-2255B →
MS35649-2255T1/4-20Brass / tin0.423–0.4370.178–0.193Quote MS35649-2255T →
MS35649-23125/16-18Carbon steel / cadmium0.545–0.5620.208–0.225Quote MS35649-2312 →
MS35649-23145/16-18CRES / passivated0.545–0.5620.208–0.225Quote MS35649-2314 →
MS35649-2315B5/16-18Brass / black oxide0.545–0.5620.208–0.225Quote MS35649-2315B →
MS35649-2315T5/16-18Brass / tin0.545–0.5620.208–0.225Quote MS35649-2315T →
MS35649-23823/8-16Carbon steel / cadmium0.607–0.6250.239–0.257Quote MS35649-2382 →
MS35649-23843/8-16CRES / passivated0.607–0.6250.239–0.257Quote MS35649-2384 →
MS35649-2385B3/8-16Brass / black oxide0.607–0.6250.239–0.257Quote MS35649-2385B →
MS35649-2385T3/8-16Brass / tin0.607–0.6250.239–0.257Quote MS35649-2385T →

Dimensions are minimum–maximum limits in inches from the reviewed reference. Width across flats is the distance between opposite hex faces; thickness is the nut’s axial height. Across-flats limits describe the part, not the tolerance of a wrench or socket.

// ORDERING EXAMPLES

Read the complete part number

MS35649-222 is a 2-56 carbon-steel nut with cadmium plating; MS35649-224 is the passivated CRES version. MS35649-225B identifies brass with black oxide, while MS35649-225T identifies tin-plated brass. The finish letter is part of the designation.

// MATERIAL AND FINISH

Retain the material and finish requirement

The selected carbon-steel dash numbers distinguish cadmium plating from phosphate coating; neither uses an added finish letter. The CRES rows are passivated. Brass rows use B for black oxide or T for tin plating. Other configurations in the standard are outside this selection. Preserve all finish letters instead of reducing the order to a bare dash number.

// FAMILY COMPARISON

Compare related nut families

MS35650 is the fine-thread machine-screw nut family. MS51967 is a finished hex nut family with separate strength grades and thickness requirements. For example, MS35649-2252 and MS51967-2 both have 1/4-20 threads, but their thickness limits differ.

// DRAWING REQUIREMENTS

Match the governing specification issue

Dimensions summarize MS35649H, sheets 1–2, 12 February 1988.

Reviewed historical MS35649H dimensional reference. The DLA record lists MS35649 as canceled and names NASM35649 as its successor. A document successor is not an automatic part-number conversion.

Include the complete designation, quantity, required delivery date and certificate or traceability requirements 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.