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Technical Data Sheet
72910 ✓ 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,NONWIRE WOUND,. Key specifications include material: LEATHER SEALING ELEMENT A, body_style: RECTANGULAR, body_width: 0.400 INCHES MAXIMUM IN, case_style: SQUARE, seal_width: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, body_height: 0.370 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-641-2079, 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 72910
NSN: 5330-00-641-2079
FSC: 5330
CAGE: 95097 — LITTLE GIANT CRANE AND SHOVEL INC (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT A
body_styleRECTANGULAR
body_width0.400 INCHES MAXIMUM IN
case_styleSQUARE
seal_width0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
body_height0.370 INCHES MAXIMUM IN
body_length0.250 INCHES MAXIMUM IN
actuator_typeFLUSH DRIVE WITH SLOT-HOLE
mounting_methodTERMINAL
terminal_length0.110 INCHES MINIMUM IN
section_quantity1
terminal_locationREAR END
NSN5330-00-641-2079
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 72910 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
SEALING ELEMENT STYLE: ANGULAR
CASE STYLE: SQUARE
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT B
ACCOMMODATED SHAFT DIAMETER: 2.750 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
HOUSING BORE DIAMETER: 3.543 INCHES NOMINAL IN
SEAL WIDTH: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
CASE STYLESQUARE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
ACCOMMODATED SHAFT DIAMETER2.750 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
HOUSING BORE DIAMETER3.543 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT A
SEAL WIDTH0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
850726Interchangeable
interchangeable cross-reference
interchangeable
816774Interchangeable
interchangeable cross-reference
interchangeable
CL-878366Interchangeable
interchangeable cross-reference
interchangeable
5L67Interchangeable
interchangeable cross-reference
interchangeable
72PMR50K-91CInterchangeable
interchangeable cross-reference
interchangeable
72-91-0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 72910?
72910 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace 72910?
There are 12 known substitutes for 72910: 850726, 816774, CL-878366 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 72910?
72910 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-641-2079. This indicates validated use in U.S. government and defense supply chains.
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