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Technical Data Sheet
PartsTable / COMPONENT / FD-1 1/2
FD-1 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 FD-1 1/2 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-991-2920, 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
FD-1 1/2
NSN: 4730-00-991-2920
FSC: 4730
CAGE: 12665 — THE CLARK-ELIANCE CORP (USA)
SPECIFICATIONS
Part NumberFD-1 1/2
NSN4730-00-991-2920
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FD-1 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
•
BODY DESIGN: STRAIGHT PATTERN
•
THREAD DIRECTION: RIGHT-HAND BOTH INLET AND OUTLET
•
INLET CONNECTION TYPE: FEMALE IRON PIPE
•
MAXIMUM STEAM WORKING PRESSURE: ERR-060
•
DESIGN TYPE: THERMOSTATIC
•
MATERIAL: STEEL VALVE HEAD
•
OUTLET CONNECTION TYPE: FEMALE IRON PIPE
TECHNICAL CHARACTERISTICS (FLIS)
BODY DESIGNSTRAIGHT PATTERN
THREAD DIRECTIONRIGHT-HAND BOTH INLET AND OUTLET
INLET CONNECTION TYPEFEMALE IRON PIPE
MAXIMUM STEAM WORKING PRESSUREERR-060
DESIGN TYPETHERMOSTATIC
MATERIALSTEEL VALVE HEAD
OUTLET CONNECTION TYPEFEMALE IRON PIPE
MATERIALSTEEL CORROSION RESISTING WORKING PARTS
MATERIALSTEEL BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
TD50Interchangeable
interchangeable cross-reference
interchangeable
112434Interchangeable
interchangeable cross-reference
interchangeable
2CYT1Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-680Interchangeable
interchangeable cross-reference
interchangeable
TD50-1-2Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FD-1 1/2?
FD-1 1/2 is a FD-1 1/2.
What parts can replace FD-1 1/2?
There are 5 known substitutes for FD-1 1/2: TD50, 112434, 2CYT1 and 2 more. Substitute compatibility should be verified for your specific system.
Is FD-1 1/2 still available?
FD-1 1/2 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