PartsTable
Technical Data Sheet
689 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include color: WHITE MARKER OVERALL, width: 7.250 INCHES NOMINAL IN, height: 3.625 INCHES NOMINAL IN, length: 7.500 INCHES NOMINAL IN, material: RUBBER SYNTHETIC LOCATION NOT OTHERWISE SPECIFIED, base_style: WIRE LEADS, DOWN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-119-4730, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL 689
NSN: 5330-00-119-4730
FSC: 5330
CAGE: 30157 — MIDWESTERN MFG CO (USA)
SPECIFICATIONS
colorWHITE MARKER OVERALL
width7.250 INCHES NOMINAL IN
height3.625 INCHES NOMINAL IN
length7.500 INCHES NOMINAL IN
materialRUBBER SYNTHETIC LOCATION NOT OTHERWISE SPECIFIED
base_styleWIRE LEADS, DOWN
bulb_styleT (TUBULAR)
case_styleSQUARE
drive_typeDIRECT
scale_typeANY ACCEPTABLE
seal_width0.500 INCHES NOMINAL IN
contact_typeTHREADED STUD
NSN5330-00-119-4730
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 689 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER: 4.750 INCHES NOMINAL IN
HOLE DIAMETER: 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER: 3.156 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER: 4.000 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER4.750 INCHES NOMINAL IN
HOLE DIAMETER0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER3.156 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER4.000 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
689Interchangeable
interchangeable cross-reference
interchangeable
MILC14509TYPE1Interchangeable
interchangeable cross-reference
interchangeable
05018Interchangeable
interchangeable cross-reference
interchangeable
23BR237112Interchangeable
interchangeable cross-reference
interchangeable
5018Interchangeable
interchangeable cross-reference
interchangeable
7082880Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 689?
689 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 689?
There are 21 known substitutes for 689: 689, MILC14509TYPE1, 05018 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 689?
689 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-119-4730. This indicates validated use in U.S. government and defense supply chains.
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