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Technical Data Sheet
PartsTable / COMPONENT / 1446-18
1446-18 ✓ 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 BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include end_item_identification: 3930-01-478-3519. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-9660, 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
1446-18
NSN: 4730-00-277-9660
FSC: 4730
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
end_item_identification3930-01-478-3519
NSN4730-00-277-9660
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1446-18 · 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
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
NOMINAL OVERALL LENGTH: 3.750 INCHES IN
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: CLOSE
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
NOMINAL OVERALL LENGTH3.750 INCHES IN
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORCLOSE
NONDEFINITIVE SPEC/STD DATA1 TYPE
THREAD SERIES DESIGNATORNPT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
119920Interchangeable
interchangeable cross-reference
interchangeable
WWN351Interchangeable
interchangeable cross-reference
interchangeable
BM11352-99Interchangeable
interchangeable cross-reference
interchangeable
RF1189AInterchangeable
interchangeable cross-reference
interchangeable
WWN351TYPE1Interchangeable
interchangeable cross-reference
interchangeable
4801-593942PC13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1446-18?
1446-18 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 1446-18?
There are 17 known substitutes for 1446-18: 119920, WWN351, BM11352-99 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1446-18?
1446-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-9660. 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