MS/NAS Style - 4140 Alloy Steel Keylocking Threaded Inserts
Extra Heavy Duty- Inch

Material:	Insert - 4140 Alloy Steel (160 KSI Min)
	Keys- 302 CRES
Finish: Cadmium Plate (QQ-P-416 Type II, Cl.2)
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: Two lines on top of insert
Lubrication: Dry Film Lube on Self-Locking Inserts only
Performance: MIL-I-45914A (MS51832)

Call
800-323-5582
or email us at
acmemail@acmeindustrial.com
and a representative will
contact you shortly.

To request a quote, Click on the MS or Acme part number in the chart below.

Insert									Installation/ Removal
Non-Locking		Self-Locking		Dimensions					Installation/ Removal
MS/NAS	ACME Part Number	MS/NAS	ACME Part Number	Internal Thread Class 3B	External Thread (Mod.) Class 2A	H Length	J ±.030	K C'Bore Depth	Install Tool Part No.
MS51832A101	217-080333	MS51832A101L	217-081333	10 - 24	7/16 - 14	.312	.22	.07	217-072628
MS51832A201	217-080533	MS51832A201L	217-081533	10 - 32	7/16 - 14	.312	.22	.07	217-072629
MS51832A102	217-080334	MS51832A102L	217-081334	1/4 - 20	1/2 - 13	.375	.22	.07	217-072630
MS51832A202	217-080534	MS51832A202L	217-081534	1/4 - 28	1/2 - 13	.375	.22	.07	217-072631
MS51832A103	217-080335	MS51832A103L	217-081335	5/16 - 18	9/16 - 12	.437	.22	.07	217-072632
MS51832A203	217-080535	MS51832A203L	217-081535	5/16 - 24	9/16 - 12	.437	.22	.07	217-072633
MS51832A104	217-080336	MS51832A104L	217-081336	3/8 - 16	5/8 - 11	.500	.25	.07	217-072634
MS51832A204	217-080536	MS51832A204L	217-081536	3/8 - 24	5/8 - 11	.500	.25	.07	217-072635
MS51832A105	217-080337	MS51832A105L	217-081337	7/16 - 14	11/16 - 11NS	.625	.28	.10	217-072636
MS51832A205	217-080537	MS51832A205L	217-081537	7/16 - 20	11/16 - 11NS	.625	.28	.10	217-072637
MS51832A106	217-080338	MS51832A106L	217-081338	1/2 - 13	13/16 - 16	.688	.28	.10	217-072638
MS51832A206	217-080538	MS51832A206L	217-081538	1/2 - 20	13/16 - 16	.688	.28	.10	217-072639
MS51832A107	217-080339	MS51832A107L	217-081339	9/16 - 12	7/8 - 14	.812	.32	.10	217-072640
MS51832A207	217-080539	MS51832A207L	217-081539	9/16 - 18	7/8 - 14	.812	.32	.10	217-072641
MS51832A108	217-080340	MS51832A108L	217-081340	5/8 - 11	1" - 12	.875	.33	.10	217-072642
MS51832A208	217-080540	MS51832A208L	217-081540	5/8 - 18	1" - 12	.875	.33	.10	217-072643
MS51832A109	217-080341	—	—	3/4 - 10	1-1/4 - 12	1.125	—	.10	217-072644
MS51832A209	217-080541	—	—	3/4 - 16		1.125	—		217-072645
—	—	MS51832A109L	217-081341	3/4 - 10		1.250	.49		217-072644
—	—	MS51832A209L	217-081541	3/4 - 16		1.250	.49		217-072645
MS51832A110	217-080342	—	—	7/8 - 9	1-3/8 - 12	1.250	—	.10	217-072646
MS51832A210	217-080542	—	—	7/8 - 14		1.250	—		217-072647
—	—	MS51832A110L	217-081342	7/8 - 9		1.375	.49		217-072646
—	—	MS51832A210L	217-081542	7/8 - 14		1.375	.49		217-072647
MS51832A111	217-080343	—	—	1" - 8	1-1/2 - 12	1.375	—	.10	217-072648
MS51832A211	217-080543	—	—	1" - 12		1.375	—		217-072649
—	—	MS51832A111L	217-081343	1" - 8		1.500	.55		217-072648
—	—	MS51832A211L	217-081543	1" - 12		1.500	.55		217-072649

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

MS/NAS Style - 4140 Alloy Steel Keylocking Threaded Inserts Extra Heavy Duty- Inch

MS/NAS Style - 4140 Alloy Steel Keylocking Threaded Inserts
Extra Heavy Duty- Inch