You are Here:

Search AcmeIndustrial.com
for Mil Spec, ANSI or ACME part number



MS/NAS Style - 4140 Alloy Steel Keylocking Threaded Inserts
Lightweight - 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 5/16 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 (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
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.
MS51830A105 217-080321 MS51830A105L 217-081321 10 - 24 5/16 - 18 .312 .22 .07 217-072568
MS51830A201
NAS1394-3
217-080521 MS51830A201L
NAS1394-3L
217-081521 10 - 32 217-072569
MS51830A106 217-080322 MS51830A106L 217-081322 1/4 - 20 3/8 - 16 .375 .22 .07 217-072570
MS51830A202
NAS1394-4
217-080522 MS51830A202L
NAS1394-4L
217-081522 1/4 - 28 217-072571
MS51830A107 217-080323 MS51830A107L 217-081323 5/16 - 18 7/16 - 14 .437 .22 .07 217-072572
MS51830A203
NAS1394-5
217-080523 MS51830A203L
NAS1394-5L
217-081523 5/16 - 24 217-072573
MS51830A108 217-080324 MS51830A108L 217-081324 3/8 - 16 1/2 - 13 .500 .24 .07 217-072574
MS51830A204
NAS1394-6
217-080524 MS51830A204L
NAS139-6L
217-081524 3/8 - 24 217-072575
MS51830A109 217-080325 MS51830A109L 217-081325 7/16 - 14 9/16 - 12 .562 .27 .07 217-072576
MS51830A205
NAS1394-7
217-080525 MS51830A205L
NAS1394-7L
217-081525 7/16 - 20 217-072577
MS51830A110 217-080326 MS51830A110L 217-081326 1/2 - 13 5/8 - 11 .625 .28 .07 217-072578
MS51830A206
NAS1394-8
217-080526 MS51830A206L
NAS1394-8L
217-081526 1/2 - 20 217-072579
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



ISO 9001
Registered
Quality
System


Aerospace Industries
Association