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Nord-Lock 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 specially 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 254 SMO Washer Material / Type

  • Steel Type: EN 1.4547 or equivalent
  • General salt water applications, pumps, chloride applications, heat exchangers, nuclear, desalination, food processing, and medical equipment.
  • Available for Bolt Sizes:
    • M3 - M39
    • #5 - 1-1/2"
  • Washer Types:
    • Regular Outer Diameter: NL3-254SMO - NL39-254SMO
    • Enlarged Outer Diameter: NL3.5-SP-254SMO - NL27-SP-254SMO
  • Treatment Surface Coating: Surface hardened
  • Washer Hardness: >/= 600HV0,05
  • Corrosion Resistance: PREN (Pitting Resistance Equivalent Number) - 45
  • Bolt Grades: Up to A4-80
  • Temperature Range: -160 degrees C. to 500 degrees C.
   
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Item IDDescriptionUOM SizeQuantity
NORD NL3-254SMO/1560
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: #5 or M3, Outer Diameter: 0.28", NORD NL3-254SMO/1560 - 10 Pairs/PK1
NORD NL3.5-254SMO/1561
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: #6 or M3.5, Outer Diameter: 0.30", NORD NL3.5-254SMO/1561 - 10 Pairs/PK1
NORD NL3.5-SP-254SMO/1562
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: #6 or M3.5, Outer Diameter: 0.35", Enlarged Outer Diameter, NORD NL3.5-SP-254SMO/1562 - 10 Pairs/PK1
NORD NL4-254SMO/1563
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: #8 or M4, Outer Diameter: 0.30", NORD NL4-254SMO/1563 - 10 Pairs/PK1
NORD NL4-SP-254SMO/1564
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: #8 or M4, Outer Diameter: 0.35", Enlarged Outer Diameter, NORD NL4-SP-254SMO/1564 - 10 Pairs/PK1
NORD NL5-254SMO/1565
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: #10 or M5, Outer Diameter: 0.35", NORD NL5-254SMO/1565 - 10 Pairs/PK1
NORD NL5-SP-254SMO/1566
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: #10 or M5, Outer Diameter: 0.43", Enlarged Outer Diameter, NORD NL5-SP-254SMO/1566 - 10 Pairs/PK1
NORD NL6-254SMO/1567
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: M6, Outer Diameter: 0.43", NORD NL6-254SMO/1567 - 10 Pairs/PK1
NORD NL6-SP-254SMO/1568
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: M6, Outer Diameter: 0.53", Enlarged Outer Diameter, NORD NL6-SP-254SMO/1568 - 10 Pairs/PK1
NORD NL1/4-254SMO/1569
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: 1/4", Outer Diameter: 0.45", NORD NL1/4-254SMO/1569 - 10 Pairs/PK1
NORD NL1/4-SP-254SMO/1570
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: 1/4", Outer Diameter: 0.53", Enlarged Outer Diameter, NORD NL1/4-SP-254SMO/1570 - 10 Pairs/PK1
NORD NL8-254SMO/1571
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: 5/16" or M8, Outer Diameter: 0.53", NORD NL8-254SMO/1571 - 10 Pairs/PK1
NORD NL8-SP-254SMO/1572
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: 5/16" or M8, Outer Diameter: 0.65", Enlarged Outer Diameter, NORD NL8-SP-254SMO/1572 - 10 Pairs/PK1
NORD NL3/8-254SMO/1573
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: 3/8", Outer Diameter: 0.65", NORD NL3/8-254SMO/1573 - 10 Pairs/PK1
NORD NL3/8-SP-254SMO/1574
Nord-Lock 254 SMO High Performance Stainless Steel Wedge Lock Washers, Bolt Size: 3/8", Outer Diameter: 0.83", Enlarged Outer Diameter, NORD NL3/8-SP-254SMO/1574 - 6 Pairs/PK1
 
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