Lock-Nuts & O-Rings

Lock-Nuts & O-Rings

Lock Nuts & O-Rings

ElecDirect offers a full line of locking nuts, o-rings and sealing washers for cord grips and strain relief connectors.

Lock-Nuts are available in a variety of materials including nylon, steel, brass, and stainless steel. Choose from our huge selection of thread types in NPT, Metric, and PG.
List

Items 1-75 of 77

sort-descending
  • Heyco 3260 Sealing Washer 1/2" NPT

    SKU: 3260

    SEALING WASHER 1/2"
    $0.66 /EA
    down
  • SEALING WASHER 3/4" NPT

    SKU: 3261

    SEALING WASHER 3/4" NPT
    $0.72 /EA
    down
  • LOCK-NUT METAL 1" NPT

    SKU: LN-100

    LOCK-NUT METAL 1"
    $0.68 /EA
    down
  • LOCK-NUT METAL 1-1/4" NPT

    SKU: LN-125

    LOCK-NUT METAL 1-1/4" NPT
    $0.69 /EA
    down
  • LOCK-NUT METAL 1-1/2" NPT

    SKU: LN-150

    LOCK-NUT METAL 1-1/2"
    $1.05 /EA
    down
  • LOCK-NUT METAL 2" NPT

    SKU: LN-200

    LOCK-NUT METAL 2"
    $1.64 /EA
    down
  • Lock-Nut Metal 1/4" LN-25

    SKU: LN-25

    LOCK-NUT METAL 1/4"
    $0.39 /EA
    down
  • LOCK-NUT METAL 2.5" NPT

    SKU: LN-250

    LOCK-NUT METAL 2 -1/2"
    $2.60 /EA
    down
  • LOCK-NUT METAL 3" NPT

    SKU: LN-300

    LOCK-NUT METAL 3"
    $4.50 /EA
    down
  • LOCK-NUT METAL 3/8" NPT

    SKU: LN-38

    LOCK-NUT METAL 3/8"
    $0.44 /EA
    down
  • LOCK-NUT METAL 1/2" NPT

    SKU: LN-50

    LOCK-NUT METAL 1/2" NPT
    $0.27 /EA
    down
  • LOCK-NUT METAL 3/4" NPT

    SKU: LN-75

    LOCK-NUT METAL 3/4" NPT
    $0.36 /EA
    down
  • LOCK-NUT STAINLESS STEEL 1"

    SKU: LNSS-100

    LOCK-NUT STAINLESS STEEL 1"
    $50.37 /EA
    down
  • LOCK-NUT STAINLESS STEEL 3/8"

    SKU: LNSS-38

    LOCK-NUT STAINLESS STEEL 3/8"
    $7.13 /EA
    down
  • LOCK-NUT STAINLESS STEEL 1/2"

    SKU: LNSS-50

    LOCK-NUT STAINLESS STEEL 1/2"
    $22.25 /EA
    down
  • LOCK-NUT STAINLESS STEEL 3/4"

    SKU: LNSS-75

    LOCK-NUT STAINLESS STEEL 3/4"
    $23.28 /EA
    down
  • LOCK-NUT NYLON METRIC M12

    SKU: NM-12-BK

    LOCK NUT NYLON M12
    $0.08 /EA
    down
  • LOCK-NUT BRASS METRIC M12

    SKU: NM-12-BR

    LOCK NUT BRASS M12
    $0.38 /EA
    down
  • LOCK NUT NYLON M12 GRAY

    SKU: NM-12-GR

    LOCK NUT NYLON M12 GRAY
    $0.07 /EA
    down
  • LOCK-NUT NYLON METRIC M16

    SKU: NM-16-BK

    LOCK NUT NYLON M16
    $0.16 /EA
    down
  • LOCK-NUT BRASS METRIC M16

    SKU: NM-16-BR

    LOCK NUT BRASS M16
    $0.49 /EA
    down
  • LOCK NUT NYLON M16 GRAY

    SKU: NM-16-GR

    LOCK NUT NYLON M16 GRAY
    $0.16 /EA
    down
  • LOCK-NUT NYLON METRIC M20

    SKU: NM-20-BK

    LOCK NUT NYLON M20
    $0.20 /EA
    down
  • LOCK-NUT BRASS METRIC M20

    SKU: NM-20-BR

    LOCK NUT BRASS M20
    $0.50 /EA
    down
  • LOCK NUT NYLON M20 GREY

    SKU: NM-20-GR

    LOCK NUT NYLON M20 GREY
    $0.20 /EA
    down
  • LOCK-NUT NYLON METRIC M25

    SKU: NM-25-BK

    LOCK NUT NYLON M25
    $0.22 /EA
    down
  • LOCK-NUT BRASS METRIC M25

    SKU: NM-25-BR

    LOCK NUT BRASS M25
    $0.81 /EA
    down
  • LOCK-NUT NYLON METRIC M32

    SKU: NM-32-BK

    LOCK NUT NYLON M32
    $0.30 /EA
    down
  • LOCK-NUT BRASS METRIC M32

    SKU: NM-32-BR

    LOCK NUT BRASS M32
    $1.25 /EA
    down
  • LOCK-NUT NYLON METRIC M40

    SKU: NM-40-BK

    LOCK NUT NYLON M40
    $0.68 /EA
    down
  • LOCK-NUT BRASS METRIC M40

    SKU: NM-40-BR

    LOCK NUT BRASS M40
    $3.96 /EA
    down
  • LOCK-NUT NYLON METRIC M50

    SKU: NM-50-BK

    LOCK NUT NYLON M50
    $0.85 /EA
    down
  • LOCK-NUT NYLON 3/8" NPT

    SKU: NN-09-BK

    LOCK NUT NYLON 3/8" NPT
    $0.22 /EA
    down
  • LOCK NUT NYLON 3/8" NPT GRAY

    SKU: NN-09-GR

    LOCK NUT NYLON 3/8" NPT GRAY
    $0.21 /EA
    down
  • LOCK-NUT NYLON 1/2" NPT

    SKU: NN-13-BK

    LOCK NUT NYLON 1/2" NPT
    $0.21 /EA
    down
  • LOCK NUT BRASS NPT 1/2"

    SKU: NN-13-BR

    LOCK NUT BRASS NPT 1/2"
    $3.01 /EA
    down
  • LOCK NUT NYLON GRAY 1/2" NPT

    SKU: NN-13-GR

    LOCK NUT NYLON GRAY 1/2" NPT
    $0.28 /EA
    down
  • LOCK-NUT NYLON 3/4" NPT

    SKU: NN-21-BK

    LOCK NUT NYLON 3/4" NPT
    $0.30 /EA
    down
  • LOCK NUT NYLON GRAY NPT 3/4"

    SKU: NN-21-GR

    LOCK NUT NYLON GRAY NPT 3/4"
    $0.44 /EA
    down
  • LOCK-NUT NYLON 1" NPT

    SKU: NN-29-BK

    LOCK NUT NYLON 1" NPT
    $0.56 /EA
    down
  • LOCK-NUT NYLON GRAY 1" NPT

    SKU: NN-29-GR

    LOCK NUT NYLON GRAY NPT 1"
    $0.56 /EA
    down
  • LOCK NUT NYLON PG-7

    SKU: NP-07-BK

    LOCK NUT NYLON PG-7
    $0.13 /EA
    down
  • LOCK NUT NYLON PG-9

    SKU: NP-09-BK

    LOCK NUT NYLON PG-9
    $0.16 /EA
    down
  • LOCK NUT BRASS PG-9

    SKU: NP-09-BR

    LOCK NUT BRASS PG-9
    $0.34 /EA
    down
  • LOCK NUT NYLON PG-11

    SKU: NP-11-BK

    LOCK NUT NYLON PG-11
    $0.14 /EA
    down
  • LOCK NUT BRASS PG-11

    SKU: NP-11-BR

    LOCK NUT BRASS PG-11
    $0.29 /EA
    down
  • LOCK NUT NYLON PG-13

    SKU: NP-13-BK

    LOCK NUT NYLON PG-13
    $0.13 /EA
    down
  • LOCK NUT NYLON PG-13, GRAY

    SKU: NP-13-GR

    LOCK NUT NYLON PG-13 GRAY
    $0.13 /EA
    down
  • LOCK NUT NYLON PG-16

    SKU: NP-16-BK

    LOCK NUT NYLON PG-16
    $0.19 /EA
    down
  • LOCK NUT BRASS PG-16

    SKU: NP-16-BR

    LOCK NUT BRASS PG-16
    $0.50 /EA
    down
  • LOCK NUT NYLON PG-21

    SKU: NP-21-BK

    LOCK NUT NYLON PG-21
    $0.21 /EA
    down
  • LOCK NUT BRASS PG-21

    SKU: NP-21-BR

    LOCK NUT BRASS PG-21
    $0.63 /EA
    down
  • LOCK NUT NYLON PG-29

    SKU: NP-29-BK

    LOCK NUT NYLON PG-29
    $0.38 /EA
    down
  • LOCK NUT BRASS PG-29

    SKU: NP-29-BR

    LOCK NUT BRASS PG-29
    $0.85 /EA
    down
  • LOCK NUT NYLON PG-36

    SKU: NP-36-BK

    LOCK NUT NYLON PG-36
    $0.80 /EA
    down
  • LOCK NUT NYLON Pg42 BLACK

    SKU: NP-42-BK

    LOCK NUT NYLON Pg42 BLACK
    $1.18 /EA
    down
  • LOCK NUT NYLON Pg48 BLACK

    SKU: NP-48-BK

    LOCK NUT NYLON Pg48 BLACK
    $1.29 /EA
    down
  • O-RING 2" NPT

    SKU: SOR-16

    O-RING 2" NPT
    $0.70 /EA
    down
  • O-RING 1/2" NPT

    SKU: SOR-1-VNT

    O-RING 1/2" NPT
    $0.08 /EA
    down
  • O-RING 3/4" NPT

    SKU: SOR-2

    O-RING 3/4" NPT
    $0.10 /EA
    down
  • O-RING 1" NPT

    SKU: SOR-3

    O-RING 1" NPT
    $0.12 /EA
    down
  • O-RING 3/8" NPT

    SKU: SOR-38

    O-RING 3/8" NPT
    $0.08 /EA
    down
  • O-RING 1-1/4" NPT

    SKU: SOR-4

    O-RING 1-1/4" NPT
    $0.48 /EA
    down
  • O-RING 1-1/2" NPT

    SKU: SOR-51

    O-RING 1-1/2" NPT
    $0.38 /EA
    down
  • LOCK NUT NYLON M40

    SKU: NM-40-GR

    LOCK NUT NYLON M40
    $0.56 /EA
    down
  • O-RING 2-1/2" NPT

    SKU: WH-6-R

    O-RING 2-1/2" NPT
    $0.48 /EA
    down
  • LOCK NUT NYLON PG-9

    SKU: NP-09-GR

    LOCK NUT NYLON PG-9
    $0.16 /EA
    down
  • LOCK NUT NYLON PG-11 GRAY

    SKU: NP-11-GR

    LOCK NUT NYLON PG-11 GRAY
    $0.10
    down
  • LOCK-NUT STAINLESS STEEL 2-1/2"

    SKU: LNSS-250

    LOCK-NUT STAINLESS STEEL 2-1/2"
    $92.22 /EA
    down
  • LOCK NUT NYLON Pg48 GRAY

    SKU: NP-48-GR

    LOCK NUT NYLON Pg48 GRAY
    $1.29 /EA
    down
  • LOCK-NUT BRASS METRIC M50

    SKU: NM-50-BR

    LOCK NUT BRASS M50
    $5.75 /EA
    down
  • LOCK NUT BRASS NPT 3/4"

    SKU: NN-21-BR

    LOCK NUT BRASS NPT 3/4"
    $3.76 /EA
    down
  • LOCK NUT BRASS NPT 3/8"

    SKU: NN-09-BR

    LOCK NUT BRASS NPT 3/8"
    $2.50 /EA
    down
  • LOCK NUT BRASS PG-7

    SKU: NP-07-BR

    LOCK NUT BRASS PG-7
    $0.29 /EA
    down
  • LOCK NUT BRASS PG-13

    SKU: NP-13-BR

    LOCK NUT BRASS PG-13
    $0.90 /EA
    down