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Technical Data Sheet
PartsTable / MRO / 50-0273
50-0273 ✓ 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 FILTER ASSEMBLY,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: STEEL UNS K08500 OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, inside_diameter: 0.307 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN, special_features: BRONZE, style_designator: CYLINDRICAL, surface_treatment: ZINC OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-1063, 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→ 50-0273
NSN: 5331-00-166-1063
FSC: 5331 — O-RING
CAGE: 98032 — TRI-TEC MANUFACTURING LLC (USA)
SPECIFICATIONS
materialSTEEL UNS K08500 OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
inside_diameter0.307 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
special_featuresBRONZE
style_designatorCYLINDRICAL
surface_treatmentZINC OVERALL
spring_free_length1.553 INCHES NOMINAL IN
spring_solid_length0.550 INCHES MAXIMUM IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
end_item_identificationAFTS A7D F4E
spring_free_outside_diameter0.417 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
material_document_and_classificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5331-00-166-1063
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 50-0273 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
AS3209-114Interchangeable
interchangeable cross-reference
interchangeable
56555AInterchangeable
interchangeable cross-reference
interchangeable
SC-B-70399Interchangeable
interchangeable cross-reference
interchangeable
SM-B-171471Interchangeable
interchangeable cross-reference
interchangeable
PLC-11749 ITEMInterchangeable
interchangeable cross-reference
interchangeable
000114EEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50-0273?
50-0273 is a FILTER ASSEMBLY,ELECTRICAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 50-0273?
There are 30 known substitutes for 50-0273: AS3209-114, 56555A, SC-B-70399 and 27 more. Substitute compatibility should be verified for your specific system.
Is 50-0273 still available?
50-0273 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