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502103 — VALVE ASSEMBLY,ANTI-ICING,JET EN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

502103: VALVE ASSEMBLY,ANTI-ICING,JET EN.

VALVE ASSEMBLY,ANTI-ICING,JET EN. Key specifications include operating_mechanism_type: AUTOMATIC, lead_nominal_diameter_size_accommodated: 0.70 MILLIMETER MM. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-050-2103, 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
502103
NSN: 5340-00-050-2103
NIINs: 000502103, 000553528, 004111338, 009754185, 013407959
FSC: 5340 — Hardware, Commercial
CAGE: 00000
SPECIFICATIONS
operating_mechanism_typeAUTOMATIC
lead_nominal_diameter_size_accommodated0.70 MILLIMETER MM
NSN5340-00-050-2103
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 502103 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
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-636,COND A OR B FED SPEC SINGLE MATERIAL RESPONSE BAND
•
DIAMETER: 0.173 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.630 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM BAND
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.443 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSINGLE LOOP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-636,COND A OR B FED SPEC SINGLE MATERIAL RESPONSE BAND
DIAMETER0.173 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.630 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM BAND
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.443 INCHES NOMINAL IN
MATERIALSTEEL BAND
LOOP INSIDE DIAMETER0.375 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
CMDX201PART502103Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 502103?
502103 is a VALVE ASSEMBLY,ANTI-ICING,JET EN.
What parts can replace 502103?
There is 1 known substitute for 502103: CMDX201PART502103. Substitute compatibility should be verified for your specific system.
What is the NSN for 502103?
502103 is cataloged in the U.S. Government catalog under NSN 5340-00-050-2103. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.