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254SMO防松垫圈

254 SMO^® washers

254 SMO^® is a high performance austenitic stainless steel (according to EN 1.4547) with greater mechanical strength and resistance against corrosion than most austenitic stainless steel grades. The material is resilient against pitting and crevice corrosion due to high contents of chromium, nickel, molybdenum and nitrogen. Nord-Lock 254 SMO® washers are especially designed for chloride rich processes and salt water solutions / atmospheres, i.e. environments where stainless steel washers made of EN 1.4404 are not suitable.

Nord-Lock washers made of 254 SMO^® quality are standard stock items, yet subject to prior sale.

	NORD-LOCK washers with enlarged outer diameter (sp) in combination with flanged nuts/bolts are recommended for use on large/long holes, painted surfaces or soft materials, e.g. aluminium.

Dimensions for 254 SMO^® washers

Type	Inner Ø d (mm)	Outer Ø D (mm)	Thickness T (mm)	Approx. weight kg/100 pairs	Header 6
NL3ss-254	3,4	7,0	2,2	0,04	1155
NL3,5ss-254	3,9	7,6	2,2	0,04	1400
NL3,5spss-254	3,9	9,0	2,2	0,07	1653
NL4ss-254	4,4	7,6	2,2	0,04	1156
NL4spss-254	4,4	9,0	2,2	0,07	1157
NL5ss-254	5,4	9,0	2,2	0,06	1158
NL5spss-254	5,4	10,8	2,2	0,11	1401
NL6ss-254	6,5	10,8	2,2	0,09	1159
NL6spss-254	6,5	13,5	2,0	0,16	1160
NL1/4"-254	7,2	11,5	2,2	0,09	1161
NL1/4"spss-254	7,2	13,5	2,2	0,15	1162
NL8ss-254	8,7	13,5	2,0	0,12	1164
NL8spss-254	8,7	16,6	2,0	0,22	1165
NL3/8"ss-254	10,3	16,6	2,0	0,19	1166
NL3/8"spss-254	10,3	21,0	2,2	0,38	1402
NL10ss-254	10,7	16,6	2,0	0,18	1167
NL10spss-254	10,7	21,0	2,0	0,37	1168
NL11ss-254	11,4	18,5	2,0	0,26	1403
NL12ss-254	13,0	19,5	2,0	0,23	1169
NL12spss-254	13,0	25,4	3,0	0,82	1170
NL1/2"ss-254	13,5	19,5	2,2	0,23	1171
NL1/2"spss-254	13,5	25,4	3,0	0,80	1404
NL14ss-254	15,2	23,0	3,0	0,49	1172
NL14spss-254	15,2	30,7	3,0	1,31	1405
NL16ss-254	17,0	25,4	3,0	0,59	1173
NL16spss-254	17,0	30,7	3,2	1,13	1174
NL18ss-254	19,5	29,0	3,2	0,80	1406
NL18spss-254	19,5	34,5	3,0	1,56	1654
NL3/4"ss-254	20,0	30,7	3,2	0,96	1176
NL3/4"spss-254	20,0	39,0	3,2	2,14	1622
NL20ss-254	21,4	30,7	3,0	0,82	1177
NL20spss-254	21,4	39,0	3,2	1,98	1510
NL22ss-254	23,4	34,5	3,2	1,19	1648
NL22spss-254	23,4	42,0	3,2	2,44	1623
NL24ss-254	25,3	39,0	3,2	1,65	1636
NL24spss-254	25,3	48,5	3,2	3,50	1655
NL1"ss-254	27,9	39,0	3,2	1,42	1178
NL1"spss-254	27,9	48,5	3,2	3,22	1656
NL27ss-254	28,4	42,0	5,8	3,10	1637
NL27spss-254	28,4	48,5	5,8	5,85	1657
NL30ss-254	31,4	47,0	5,8	4,04	1649
NL33ss-254	34,4	48,5	5,8	4,25	1658
NL36ss-254	37,4	55,0	5,8	5,96	1507
NL39ss-254	40,4	58,5	5,8	6,74	1659

Material and dimensions are subject to change without prior notice.

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254SMO防松垫圈