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Technical Data Sheet
PartsTable / COMPONENT / 502 1/2
502 1/2 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The 502 1/2 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-058-4869, 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
502 1/2
NSN: 4730-00-058-4869
FSC: 4730
CAGE: 38508 — DESCO CORP MARSH BELLOFRAM DIV (USA)
SPECIFICATIONS
Part Number502 1/2
NSN4730-00-058-4869
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 502 1/2 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTLET CONNECTION TYPE: FEMALE IRON PIPE AND MALE IRON PIPE
•
INLET CONNECTION TYPE: FEMALE IRON PIPE AND MALE IRON PIPE
•
MATERIAL: NICKEL ALLOY VALVE SEAT
•
RATED CAPACITY AT MAXIMUM WORKING PRESSURE: 830.0 POUNDS OF WATER PER HOUR LBS
•
DESIGN TYPE: THERMOSTATIC
•
SCREW THREAD SERIES DESIGNATOR: NPT BOTH INLET AND OUTLET
•
BODY DESIGN: ANGLE PATTERN
TECHNICAL CHARACTERISTICS (FLIS)
OUTLET CONNECTION TYPEFEMALE IRON PIPE AND MALE IRON PIPE
INLET CONNECTION TYPEFEMALE IRON PIPE AND MALE IRON PIPE
MATERIALNICKEL ALLOY VALVE SEAT
RATED CAPACITY AT MAXIMUM WORKING PRESSURE830.0 POUNDS OF WATER PER HOUR LBS
MATERIALCOPPER ALLOY BODY
DESIGN TYPETHERMOSTATIC
SCREW THREAD SERIES DESIGNATORNPT BOTH INLET AND OUTLET
BODY DESIGNANGLE PATTERN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
159685Interchangeable
interchangeable cross-reference
interchangeable
F600102Interchangeable
interchangeable cross-reference
interchangeable
FU03001Interchangeable
interchangeable cross-reference
interchangeable
50212Interchangeable
interchangeable cross-reference
interchangeable
23702Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 502 1/2?
502 1/2 is a 502 1/2.
What parts can replace 502 1/2?
There are 16 known substitutes for 502 1/2: 159685, F600102, FU03001 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 502 1/2?
502 1/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-058-4869. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026