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Technical Data Sheet
PartsTable / MRO / 903002
903002 ✓ 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

The RECEIVER-TRANSMITTER,RADIO is a the manufacturer industrial component. Key specifications include phase: SINGLE LOCATION NOT OTHERWISE SPECIFIED, power_output: 1.000 WATTS NOMINAL, overall_depth: 17.000 INCHES NOMINAL IN, overall_width: 22.000 INCHES NOMINAL IN, overall_height: 12.000 INCHES NOMINAL IN, ac_voltage_rating: 120.000 VOLTS NOMINAL FIRST ALTERNATE OPERATING POWER RQMT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-079-4578, 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→ 903002
NSN: 5331-00-079-4578
FSC: 5331 — O-RING
CAGE: 89944 — ELBITAMERICA, INC. (USA)
SPECIFICATIONS
phaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
power_output1.000 WATTS NOMINAL
overall_depth17.000 INCHES NOMINAL IN
overall_width22.000 INCHES NOMINAL IN
overall_height12.000 INCHES NOMINAL IN
ac_voltage_rating120.000 VOLTS NOMINAL FIRST ALTERNATE OPERATING POWER RQMT
fsc_application_dataELECTRONICS ASSY, PN 903141
functional_descriptionTHIS ITEM IS A FULL DUPLEX FM MICROWAVE RADIO SYSTEM USED TO INTERCONNECT TRI-TAC EQPT & GMF TERMINALS;CAN BEINTERFACED W/MODEMS SUCH AS MD-1026 ORAN/TAC-1 FIBER OPTIC SYSTEM
input_frequency_rating15.000 KILOHERTZ NOMINAL
receiver_emission_typeF9
supplementary_featuresPOWER CONSUMPTION: 87W,1AMP AT 110 OR 1/2AMP AT 220VAC VAC
end_item_identificationTROPO/SATELLITE SUPPORT RADIO SYS; AN/GRC-239
NSN5331-00-079-4578
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 903002 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
•
CENTER HOLE DIAMETER: 0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
OUTSIDE DIAMETER: 0.254 INCHES NOMINAL IN
•
TEMP RATING: -85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
•
MATERIAL: RUBBER SILICONE CLASS Q
•
ELONGATION PERCENTAGE: 125 MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER0.254 INCHES NOMINAL IN
TEMP RATING-85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
MATERIALRUBBER SILICONE CLASS Q
ELONGATION PERCENTAGE125 MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
116776Interchangeable
interchangeable cross-reference
interchangeable
3L02X1AInterchangeable
interchangeable cross-reference
interchangeable
3323089 PIECE 1Interchangeable
interchangeable cross-reference
interchangeable
5315PL0896964Interchangeable
interchangeable cross-reference
interchangeable
MILP10971Interchangeable
interchangeable cross-reference
interchangeable
900012-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 903002?
903002 is a RECEIVER-TRANSMITTER,RADIO. It is classified as a MRO (MRO_GENERAL).
What parts can replace 903002?
There are 25 known substitutes for 903002: 116776, 3L02X1A, 3323089 PIECE 1 and 22 more. Substitute compatibility should be verified for your specific system.
Is 903002 still available?
903002 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026