You are Here: Search AcmeIndustrial.com for Mil Spec, ANSI or ACME part number Home About Us Keylocking Inserts Installation and Removal Helpful Resources News Certifications The Bushing Store Contact Us Terms Videos MS/NAS Style - 303 CRES Keylocking Threaded Inserts Extra Heavy Duty- Inch Installation Dimensions & Tools MS/NAS Style Inserts Call 800-323-5582 or email us at acmemail@acmeindustrial.com and a representative will contact you shortly. Specific Use Inserts Industrial Style Inserts Special Inserts Comparing Threaded Inserts Swage-Sert(R) Inserts Precision Bushings Keylocking Studs Material: Insert - 303 CRES Keys- 302 CRES Finish: Passivated Tolerances: .010 inch unless specified otherwise Internal Threads: Per SAE AS8879 Dimensions: All dimensions below are in inches Keys: Inserts with an internal thread size of 1/4 and larger are furnished with 4 locking keys. Smaller sizes have 2 locking keys. Material Identification Mark: None Lubrication: Dry Film Lube on Self-Locking Inserts only Performance: MIL-I-45914A (MS51832) To request a quote, Click on the MS or Acme part number in the chart below. Insert Registered Quality System Aerospace Industries Association Non-Locking Self-Locking Installation/ Removal Dimensions Internal External K H J Install Tool Thread Thread (Mod.) C'Bore Length .030 Part No. Class 3B Class 2A Depth MS/NAS ACME Part Number MS/NAS ACME Part Number MS51832-101 217-076333 MS51832-101L 217-077333 10 - 24 MS51832-201 217-076533 MS51832-201L 217-077533 10 - 32 MS51832-102 217-076334 MS51832-102L 217-077334 1/4 - 20 MS51832-202 217-076534 MS51832-202L 217-077534 1/4 - 28 MS51832-103 217-076335 MS51832-103L 217-077335 5/16 - 18 MS51832-203 217-076535 MS51832-203L 217-077535 5/16 - 24 MS51832-104 217-076336 MS51832-104L 217-077336 3/8 - 16 MS51832-204 217-076536 MS51832-204L 217-077536 3/8 - 24 MS51832-105 217-076337 MS51832-105L 217-077337 7/16 - 14 MS51832-205 217-076537 MS51832-205L 217-077537 7/16 - 20 MS51832-106 217-076338 MS51832-106L 217-077338 1/2 - 13 MS51832-206 217-076538 MS51832-206L 217-077538 1/2 - 20 MS51832-107 217-076339 MS51832-107L 217-077339 9/16 - 12 MS51832-207 217-076539 MS51832-207L 217-077539 9/16 - 18 MS51832-108 217-076340 MS51832-108L 217-077340 5/8 - 11 MS51832-208 217-076540 MS51832-208L 217-077540 5/8 - 18 MS51832-109 217-076341 -- -- 3/4 - 10 MS51832-209 217-076541 -- -- 3/4 - 16 -- -- MS51832-109L 217-077341 3/4 - 10 -- -- MS51832-209L 217-077541 3/4 - 16 MS51832-110 217-076342 -- -- 7/8 - 9 MS51832-210 217-076542 -- -- 7/8 - 14 -- -- MS51832-110L 217-077342 7/8 - 9 MS51832-210L 217-077542 7/8 - 14 MS51832-111 217-076343 -- -- 1" - 8 MS51832-211 217-076543 -- -- 1" - 12 -- -- MS51832-111L 217-077343 1" - 8 -- -- MS51832-211L 217-077543 1" - 12 7/16 - 14 .312 .22 .07 1/2 - 13 .375 .22 .07 9/16 - 12 .437 .22 .07 5/8 - 11 .500 .25 .07 11/16 - 11NS .625 .28 .10 13/16 - 16 .688 .28 .10 7/8 - 14 .812 .32 .10 1" - 12 .875 .33 .10 1.125 -- 1-1/4 - 12 .49 1.250 -- 1-3/8 - 12 .49 1.375 -- 1-1/2 - 12 For inserts with the following options, add the letter code shown to the end of the Acme part number: S -- Silver Plate per AMS 2410 SN -- Silver Plate Only, No Dry Film Lube (Self-Locking Inserts Only DFL -- Dry Film Lube (Non-Locking INserts Only) K -- Self Broaching Keys .55 217-072631 217-072632 217-072633 217-072634 217-072635 217-072636 217-072637 217-072638 217-072639 217-072640 217-072641 217-072642 217-072643 217-072645 217-072644 217-072646 217-072647 217-072646 217-072647 217-072648 .10 1.500 217-072630 217-072645 .10 1.375 217-072629 217-072644 .10 1.250 217-072628 217-072649 217-072648 217-072649 Careers (c) 2013 Acme Industrial Company | 441 Maple Avenue | Carpentersville, IL 60110-1990 USA (847) 428-3911 | (800) 323-5582 | Fax: (847) 428-1820 | acmemail@acmeindustrial.com Acme Industrial Company is a subsidiary of Keylock Threaded Inserts MS/NAS Threaded Inserts Thinwall Threaded Inserts Installation Tips Precision Drill Bushings Shop Online Keylocking Studs Installation Tips Specific Use Threaded Inserts Industrial Threaded Inserts Compared vs. Heli-Coil(R) & Keensert(R) Threaded Inserts Threaded Insert Installation Tips Threaded Insert Removal Tips Privacy/Legal