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78128 ✓ 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

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include body_style: IRREGULAR, switch_type: TRANSFER, overall_width: 1.310 INCHES NOMINAL IN, overall_height: 0.500 INCHES NOMINAL IN, overall_length: 1.750 INCHES NOMINAL IN, special_features: CROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-835-1977, 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
78128
NSN: 5330-00-835-1977
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
body_styleIRREGULAR
switch_typeTRANSFER
overall_width1.310 INCHES NOMINAL IN
overall_height0.500 INCHES NOMINAL IN
overall_length1.750 INCHES NOMINAL IN
special_featuresCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
connector_end_designMALE
operating_temp_range-55.0 TO 85.0 CELSIUS DEGC
end_item_identificationAN/ALQ-155V V
switch_operation_sequenceBREAKS BEFORE MAKES
coupling_position_quantity3
rf_power_handling_capability2.0 WATTS AVERAGE FIRST
NSN5330-00-835-1977
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78128 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
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
78128Interchangeable
interchangeable cross-reference
interchangeable
060-003359Interchangeable
interchangeable cross-reference
interchangeable
17ABALInterchangeable
interchangeable cross-reference
interchangeable
50001-224-0260Interchangeable
Same NIIN cross-reference
interchangeable
74998615Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78128?
78128 is a SWITCH,RADIO FREQUENCY TRANSMISS.
What parts can replace 78128?
There are 5 known substitutes for 78128: 78128, 060-003359, 17ABAL and 2 more. Substitute compatibility should be verified for your specific system.
Is 78128 still available?
78128 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