PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 4131.735.5
4131.735.5 ✓ 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 4131.735.5 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 4730-01-398-2122, 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
4131.735.5
NSN: 4730-01-398-2122
FSC: 4730
CAGE: 00819 — FLAIR CORPORATION DBA S P X AIR TREATMENT DIV DEHYDRATION (USA)
SPECIFICATIONS
Part Number4131.735.5
NSN4730-01-398-2122
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4131.735.5 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONHANKISON, DIV OF HANSEN INC, COMMERICAL AIRDRYER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
51718Interchangeable
interchangeable cross-reference
interchangeable
4731-735-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4131.735.5?
4131.735.5 is a 4131.735.5.
What parts can replace 4131.735.5?
There are 2 known substitutes for 4131.735.5: 51718, 4731-735-5. Substitute compatibility should be verified for your specific system.
What is the NSN for 4131.735.5?
4131.735.5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-398-2122. 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