MS/NAS Style - 303 CRES Keylocking Threaded Inserts
Miniature - Metric

Material:	Insert - 303 CRES
	Keys- 302 CRES
Finish: Passivated
Tolerances: ±.25 mm unless specified otherwise
Internal Threads: Per Fed Std H28/21, MJ Form
Dimensions: All dimensions below are in millimeters
Keys: Miniature inserts are furnished with 2 locking keys
Material Identification Mark: None
Lubrication: Dry Film Lube on Self-Locking Inserts only
Performance: There is no National Aerospace Standard for Metric Keylocking Inserts manufactured from 303 CRES. The inserts are compliant with the other requirements of NA0147, NA0149, and NA0151 except for any references to the type of material or performance related to the material.

Call
800-323-5582
or email us at
acmemail@acmeindustrial.com
and a representative will
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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
ACME Part Number		Internal Thread Class 4H6H	External Thread Class 4h	G Thread Length	H Length	Install Tool Part No.
217-076382	217-077382	M2 x 0.4	M4 x 0.7	2.20	3.00	217-072682
217-076383	217-077383	M2.5 x 0.45	M4.5 x 0.75	2.70	3.81	217-072683
217-076384	217-077384	M3 x 0.5	M5 x 0.8	3.10	4.25	217-072684
217-076386	217-077386	M4 x 0.7	M6 x 0.75	4.11	5.25	217-072686
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