MS/NAS Style - 303 CRES Keylocking Threaded Inserts
Heavy Duty- 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: Inserts with an internal thread size of M6 and smaller are furnished with 2 locking keys. Larger sizes have 4 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
ACME Part Number		Internal Thread* Class 4H5H	External Thread Class 4h	H Length	J ±.76	K C'Bore Depth	Install Tool Part No.
217-076363	217-077363	M4x0.7	M8x1.25	8.0	5.00	1.27	217-072663
217-076364	217-077364	M5x0.8	M10x1.25	10.0	5.50	1.27	217-072664
217-076365	217-077365	M6x1.0	M12x1.25	12.0	6.46	1.78	217-072665
217-076366	217-077366	M8x1.25	M14x1.5	14.0	6.46	1.78	217-072666
217-076566	217-077566	M8x1.0
217-076367	217-077367	M10x1.5	M16x1.5	16.0	6.46	2.29	217-072667
217-076567	217-077567	M10x1.25
217-076369	217-077369	M12x1.75	M18x1.5	18.0	7.23	2.29	217-072669
217-076569	217-077569	M12x1.25
217-076370	217-077370	M14x2.0	M20x1.5	20.0	7.73	2.79	217-072670
217-076570	217-077570	M14x1.5
217-076371	217-077371	M16x2.0	M 22x1.5	22.0	8.50	2.79	217-072671
217-076571	217-077571	M16x1.5
217-076572	217-077572	M18x1.5	M24x2.0	24.0	9.25	2.79	217-072672
217-076373	217-077373	M20x2.5	M30x2.0	30.0	12.51	2.79	217-072673
217-076573	217-077573	M20x1.5
217-076574	217-077574	M22x1.5	M32x2.0	32.0	12.51	2.79	217-072674
217-076375	217-077375	M24x3.0	M33x2.0	33.0	13.97	3.81	217-072675
217-076575	217-077575	M24x2.0

* Thread Class on M 4 and M 5 Internal Thread is 4H6H

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 - 303 CRES Keylocking Threaded Inserts Heavy Duty- Metric

MS/NAS Style - 303 CRES Keylocking Threaded Inserts
Heavy Duty- Metric