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Technical Data Sheet

72903 — Technical Data Sheet

✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The HOUSING ASSY,SAFEIN is a the manufacturer industrial component. Key specifications include gross_weight: 0.4 SHIPPING CONTAINER POUNDS, unable_to_decode: UNABLE TO DECODE, package_nominal_overall_width_and_type: 9.50 INCHES SHIPPING CONTAINER IN, package_nominal_overall_height_and_type: 3.50 INCHES SHIPPING CONTAINER IN, package_nominal_overall_length_and_type: 9.50 INCHES SHIPPING CONTAINER IN. This part is cataloged in the Federal Logistics Information System under NSN 5330-00-842-5792, 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
72903
NSN: 5330-00-842-5792
FSC: 5330
CAGE: 95097 — LITTLE GIANT CRANE AND SHOVEL INC (USA)
SPECIFICATIONS
gross_weight0.4 SHIPPING CONTAINER POUNDS
unable_to_decodeUNABLE TO DECODE
package_nominal_overall_width_and_type9.50 INCHES SHIPPING CONTAINER IN
package_nominal_overall_height_and_type3.50 INCHES SHIPPING CONTAINER IN
package_nominal_overall_length_and_type9.50 INCHES SHIPPING CONTAINER IN
NSN5330-00-842-5792
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 72903 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
•
ACCOMMODATED SHAFT DIAMETER: 4.375 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
•
SEAL WIDTH: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
ACCOMMODATED SHAFT DIAMETER4.375 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
SPECIAL FEATURESW/INTEGRAL COVER PLATE AND STEEL GARTER SPRING
SURFACE TREATMENTPLASTIC CASE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
CASE STYLESQUARE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
SEAL WIDTH0.625 INCHES NOMINAL IN
OUTSIDE DIAMETER6.071 INCHES NOMINAL IN
HOUSING BORE DIAMETER6.065 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
43795InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4-2800InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A4-2800InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8-00282-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-224C147-70InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
585514-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 72903?
72903 is a HOUSING ASSY,SAFEIN.
What parts can replace 72903?
There are 22 known substitutes for 72903: 43795, 4-2800, A4-2800 and 19 more. Substitute compatibility should be verified for your specific system.
Is 72903 still available?
72903 is currently cancelled.
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