MS/NAS Style - A286 CRES Keylocking Threaded Inserts
Lightweight - Inch

Material:	Insert - A286 CRES (140 KSI Min)
	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 5/16 and larger are furnished with 4 locking keys. Smaller sizes have 2 locking keys.
Material Identification Mark: One line on top of insert
Lubrication: Dry Film Lube on Self-Locking Inserts only
Performance: MIL-I-45914A (MS51830 & NAS1394)

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.
MS51830CA105	217-078321	MS51830CA105L	217-079321	10 - 24	5/16 - 18	.312	.22	.07	217-072568
MS51830CA201 NAS1394CA3	217-078521	MS51830CA201L NAS1394CA3L	217-079521	10 - 32	5/16 - 18	.312	.22	.07	217-072569
MS51830CA106	217-078322	MS51830CA106L	217-079322	1/4 - 20	3/8 - 16	.375	.22	.07	217-072570
MS51830CA202 NAS1394CA4	217-078522	MS51830CA202L NAS1394CA4L	217-079522	1/4 - 28	3/8 - 16	.375	.22	.07	217-072571
MS51830CA107	217-078323	MS51830CA107L	217-079323	5/16 - 18	7/16 - 14	.437	.22	.07	217-072572
MS51830CA203 NAS1394CA5	217-078523	MS51830CA203L NAS1394CA5L	217-079523	5/16 - 24	7/16 - 14	.437	.22	.07	217-072573
MS51830CA108	217-078324	MS51830CA108L	217-079324	3/8 - 16	1/2 - 13	.500	.24	.07	217-072574
MS51830CA204 NAS1394CA6	217-078524	MS51830CA204L NAS1394CA6L	217-079524	3/8 - 24	1/2 - 13	.500	.24	.07	217-072575
MS51830CA109	217-078325	MS51830CA109L	217-079325	7/16 - 14	9/16 - 12	.562	.27	.07	217-072576
MS51830CA205 NAS1394CA7	217-078525	MS51830CA205L NAS1394CA7L	217-079525	7/16 - 20	9/16 - 12	.562	.27	.07	217-072577
MS51830CA110	217-078326	MS51830CA110L	217-079326	1/2 - 13	5/8 - 11	.625	.28	.07	217-072578
MS51830CA206 NAS1394CA8	217-078526	MS51830CA206L NAS1394CA8L	217-079526	1/2 - 20	5/8 - 11	.625	.28	.07	217-072579
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