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Technical Data Sheet
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3994-4 ✓ Verified by PartsTable
Clementoni · 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a Clementoni industrial component. Key specifications include end_item_identification: ELECTRICAL E/I FSCM 74924. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-005-4532, 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
3994-4
NSN: 4730-01-005-4532
FSC: 4730
CAGE: 05463 — WHEELABRATOR-FRYE INC BALCRANK PRODUCTS (USA)
SPECIFICATIONS
end_item_identificationELECTRICAL E/I FSCM 74924
NSN4730-01-005-4532
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3994-4 · Clementoni ⚠ 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
•
NOMINAL OVERALL LENGTH: 1.250 INCHES IN
•
CONNECTION STYLE: SWIVEL NUT, GASKET SEAL (PIPE) FIRST END
•
NOMINAL THREAD SIZE: 0.375 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: UNF FIRST END
•
CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END
•
THREAD CLASS: 2B FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH1.250 INCHES IN
CONNECTION STYLESWIVEL NUT, GASKET SEAL (PIPE) FIRST END
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
THREAD SERIES DESIGNATORUNF FIRST END
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
THREAD CLASS2B FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
3494-4Interchangeable
interchangeable cross-reference
interchangeable
3994-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3994-4?
3994-4 is a ADAPTER,STRAIGHT,PIPE TO TUBE manufactured by Clementoni.
What parts can replace 3994-4?
There are 2 known substitutes for 3994-4: 3494-4, 3994-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 3994-4?
3994-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-005-4532. 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