Boots and Caps

STRAIN RELIEF BOOTS

Designed to be utilized on .128, .151, and .190 crimp sleeves. FIS boots are available in Red (R), Black (B), Green (GR), Blue (BLU), Aqua (AQ), White (W), and Yellow (Y). Replace X with abbreviation of color in parenthesis.Replace "x" with color code.

  Description

  ID

  Length

  Crimp Size

  Part #

  DESCRIPTION (See Strain Relief Boot style chart above)   ID   Length   Crimp Size  
  FIS ST 900µm Boot (A) (25 pk.)   0.15   1.13”   0.128   667342900-25-X
  FIS SC and FC 3mm 90º Boot (B) (25 pk.)   0.2   1.40”   0.19   CONN90-25-X
  FIS SC and FC 900µm Boot (C) (25 pk.)   0.17   1.13”   0.179   CONN107900-25-X
  FIS ST 3mm Boot (D) (25 pk.)   0.15   1.47”   0.128   667342-BC-25-X
  FIS ST 2mm Boot (25 pk.)   0.15   1.47”   0.128   6673422-BC-25-X
  FIS FC 3mm Boot (E) (25 pk.)   0.2   1.25”   0.19   CONN107BC-25-X
  FIS FC 2mm Boot (25 pk.)   0.2   1.25”   0.19   CONN1072-BC-25-X
  FIS SC 3mm Boot (F) (25 pk.)   0.2   1.47”   0.19   CONN205-25-X
  FIS LC 90º 2mm Boot Black (G) (25 pk.)   0.137   1.44”   0.128   F1-LC 90-BLK-25
  FIS LC 3mm Boot Black (H) (25 pk.)   0.137   1.10”   0.128   LCBOOTBL25
  FIS LC 50º 2mm Boot Black (I) (25 pk.)   0.137   1.0”   0.128   F1-LC45BL25
  FIS LC 90º 2mm Boot White (not shown) (25 pk.)   0.137   1.40”   0.128   F1-LC90M2590
  FIS LC 90º 2mm Boot Green (not shown) (25 pk.)   0.137   1.40”   0.128   F1-LC90GR25
  FIS SC 2mm Boot (not shown) (25pk.)   0.2   1.47”   0.19   CONN205-X-M20
  Corning 90º Radius Boot Clip for ST/SC/FC 3mm Boots, Clear (J), for 3mm Cable   9540002BP
  Corning 90º Radius Boot Clip for LC Boots, Clear, for 2mm Cable    9540004BPC

FERRULE PROTECTION CAPS

FIS protection caps are designed to provide protection against various elements that could damage either the ferrule or fiber. The universal clear protection caps fit ST, FC and SC style 2.5mm ferrules.

  Description

  Part #

  Green Dust Cap Covers FC Housing (A) (100 pk.)   CPCYGR-B
  Yellow Dust Cap Covers FC Housing (B) (100 pk.)   CPCY-B
  Universal Clear Cap for 2.5mm Ferrules (C) (100 pk.)   CAPB-B
  Universal Dust Cap for 1.25mm Ferrules (D) (100 pk.)   F1-0125
  Universal Dust Cap for 1.25mm Ferrules with jacket strap Aqua (E) (100 pk.)    F1-0125SA-100
  Universal Dust Cap for 1.25mm Ferrules with jacket strap Black (100 pk.)    F1-0125SBK-100
  Universal Dust Cap for 2.5mm Ferrules with jacket strap (100 pk.)   F1-90010M

MATING SLEEVE ADAPTER CAPS

The dust caps for adapters are easy to misplace and now FIS makes them just as easy to replace. Available in multiple colors, see chart above. Replace XX with the color desired: BL=Black, BU=Blue, GR=Green, BE=Beige AQ=Aqua.

  Description

  Part #

  SC Mating Sleeve Adapter Dust Cap, Blue - 100 pk.   F1-ADCAP-100-BU
  SC Mating Sleeve Adapter Cap, Clear - 100pk   F1-ADCAP-100-CL
  SC Mating Sleeve Adapter Cap - 100pk (Specify Color)   F1-ADCAP-100-XX
  SC Mating Sleeve Click-in Style Adapter Cap, Black - 100pk.   F1-ADCAP-SC
  LC Mating Sleeve Round Head Adapter Cap, White - 100pk.   F1-ADCAP-LC
  LC Mating Sleeve Square Head with Laser Warning Sticker - 100pk (Specify Color)   F1-ADCAP-LCS-XX
  FC Mating Sleeve Round Head with Laser Warning Sticker - 100pk (Specify Color)   F1-ADCAP-FCS-XX
  ST Mating Sleeve Round Head with Laser Warning Sticker - 100pk (Specify Color)   F1-ADCAP-STS-XX
  LC Uniboot Dust Cap White - 100pk   931-CAP-W

LASER SAFETY CAPS for mating sleeves with metal tile

FIS has created a solution to the problem of laser light emitted from fiber optic bulkhead adapters. Our new Laser Safety Caps come with a warning symbol on each to visually alert people to potentially harmful exposure to laser light and cap has a built-in metal tile to stop laser light up to +18dBm. They are available for SC, LC, ST and FC styles. Replace X with the color desired: BL=Black, BLU=Blue, GR=Green, BE=Beige, AQ=Aqua, CL=Clear.

  Description

  Part #

  ST Bulkhead Laser Safety Cap - (25 pk.)        (A)   F1-BLSCST-X25
  SC Bulkhead Laser Safety Cap - (25 pk.)        (B)   F1-BLSCSC-X25
  FC Bulkhead Laser Safety Cap - (25 pk.)        (C)   F1-BLSCFC-X25
  LC Bulkhead Laser Safety Cap - (25 pk.)        (D)   F1-BLSCLC-X25

METAL CAP AND CHAINS

  Description

  Part #

  Cap and Chain for LC Mating Sleeves   F1-9229-LC
  Cap and Chain for SC Mating Sleeves   F1-9229-SC
  Cap and Chain for ST Mating Sleeves   F1-9229-ST
  Cap and Chain for FC Mating Sleeves   F1-9229-CH
Copyright 2026 © Fiber Instruments Sales Inc. All Rights Reserved. Privacy Policy