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 KGMS (MS35489 Miltary-Spec) Grommets

 

 

KGMS Miltary-Spec Grommets meet MS35489 standards and are approved by the US Army and Navy.  The MS35489 Grommets are produced with a Nitrile (Buna-N) compound.  They offer protection against  Vibration, abrasion, cutting, and chafing.  Typically used to protect wiring, pipe, and and other objects that pass through a support structure or panel hole.  These grommets are also produced in Natural Rubber and Neoprene, but do not meet the Miltary-Spec MS35489.

 

 

Features and Benefits:

  • Low Cost
  • Easy to install and no maintenance
  • Protects wires and other objects from cuts, chafing, and abrasion
  • Prevents heat, smoke, grease, and dirt from passing
  • Excellent for noise and vibration reduction
  • Available in 3 elastomers: Natural Rubber, Neoprene, and Nitrile (Buna-N)
  • Available in 70 Durometer Shore A.  Other durometers available upon request
  • Can be used as spacers
  • Used to protect wire, pipe, hose, or tubing
  • Made in the USA

 

Applications:

  • Miltary vehicles.
  •  HVAC equipment, panels, sensitive electronic equipment, motors, platens, medical equipment, office and data processing equipment, fiber optics, security surveillance, racks, enclosures, wiring harnesses, air ducts, fire walls, cabs, trucks, busses, trailers

 

Nitrile (Buna-N)

Advantages:  Very good resistance to oil and gasoline; superior resistance to petroleum-based hydraulic fluids; wide range of service temperatures (-65 to 250° F); good resistance to hydrocarbon solvents; very good resistance to alkalis and acids.

Limitations:  Inferior resistance to ozone, sunlight, and natural aging; poor resistance to oxygenated solvents.

 

Natural Rubber (NR)

Advantages:  Outstanding resilience; high tensile strength; superior resistance to tear and abasion; excellent rebound elasticity (snap); good flexibility at low temperatures (-40° to 155° F).

Limitations: 

Poor resistance to heat, ozone, and sunlight; very little resistance to oil gasoline, and hydrocarbon solvents; Operating temperatures should not exceed 155° F.

  • Natural Rubber is not recommended from exposure to oil, gasoline, ozone sunlight.
  • Conical style mounts are not recomened in tension applications.

 

 Neoprene (CR)

Advantages:  Good inherent flame resistance; moderate resistance to oil and gasoline; very good resistance to weather, ozone, and natural aging; good resistance to flex cracking; very good resistance to alkalis and acids.

Limitations:  Poor to fair resistance aromatic and oxygenated solvents; limited flexibility at low temperatures (10° F to 180° F).

 

Source: American Chemical Society

KGMS Grommets 1
Product Code
Outside Diameter - in (A)
Groove Diameter - in (C)
Inside Diameter - in (E)
Grommet Thickness - in (F)
Groove Width - in (G)
Durometer
Elastomer
Dimensional CAD Drawing (pdf)
Product Code
1.750
1.375
1.000
.625
.25
50
Natural Rubber
1.750
1.375
1.000
.625
.25
50
Neoprene
1.750
1.375
1.000
.625
.25
50
Nitrile
1.250
1.000
0.375
0.250
.062
50
Natural Rubber
1.250
1.000
0.375
0.250
.062
50
Neoprene
1.250
1.000
0.375
0.250
.062
50
Nitrile
1.625
1.250
.75
.25
.062
50
Natural Rubber
1.625
1.250
.75
.25
.062
50
Neoprene
1.625
1.250
.75
.25
.062
50
Nitrile
0.750
0.562
0.188
0.312
.188
50
Natural Rubber
0.750
0.562
0.188
0.312
.188
50
Neoprene
0.750
0.562
0.188
0.312
.188
50
Nitrile
1.125
0.875
0.625
0.312
.25
50
Natural Rubber
1.125
0.875
0.625
0.312
.25
50
Neoprene
1.125
0.875
0.625
0.312
.25
50
Nitrile
1.312
1.000
0.688
0.375
.062
50
Natural Rubber
1.312
1.000
0.688
0.375
.062
50
Neoprene
1.312
1.000
0.688
0.375
.062
50
Nitrile
0.750
0.56
0.125
0.188
.062
50
Natural Rubber
0.750
.56
0.125
0.188
.062
50
Neoprene
0.750
.56
0.125
0.188
.062
50
Nitrile
0.875
0.625
0.375
0.375
.125
50
Natural Rubber
0.875
0.625
0.375
0.375
.125
50
Neoprene
0.875
0.625
0.375
0.375
.125
50
Nitrile
1.750
1.375
1.000
.50
.125
50
Natural Rubber
1.750
1.375
1.000
.50
.125
50
Neoprene
1.750
1.375
1.000
.50
.125
50
Nitrile
0.875
0.625
0.375
0.438
.187
50
Natural Rubber
0.875
0.625
0.375
0.438
.187
50
Neoprene
0.875
0.625
0.375
0.438
.187
50
Nitrile
1.000
.75
0.250
0.250
.062
50
Natural Rubber
1.000
.75
0.250
0.250
.062
50
Neoprene
1.000
.75
0.250
0.250
.062
50
Nitrile
1.812
1.438
.75
0.500
.187
50
Natural Rubber
1.812
1.438
.75
0.500
.187
50
Neoprene
1.812
1.438
.75
0.500
.187
50
Nitrile
Outside Diameter - in (A) Groove Diameter - in (C) Inside Diameter - in (E) Grommet Thickness - in (F) Groove Width - in (G) Durometer Elastomer Dimensional CAD Drawing (pdf)

Use the sort keys located at the bottom of the table to find the exact Vibro-Insulator© you require. Please contact us for selection help.