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418100A ✓ 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 PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, seat_angle: 50.0 DEGREES, head_height: 0.250 INCHES NOMINAL IN, thread_class: 2A EXTERNAL A, overall_length: 0.688 INCHES NOMINAL IN, connection_style: FLARED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-283-8209, 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
418100A
NSN: 4730-01-283-8209
FSC: 4730
CAGE: 94580 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE-MINNEAPOLIS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
seat_angle50.0 DEGREES
head_height0.250 INCHES NOMINAL IN
thread_class2A EXTERNAL A
overall_length0.688 INCHES NOMINAL IN
connection_styleFLARED
special_featuresKNURLED END
style_designatorPLUG, TUBE FITTING FLARED (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size0.438 INCHES EXTERNAL IN
thread_series_designatorUNF EXTERNAL
NSN4730-01-283-8209
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 418100A · 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
•
THREAD CLASS: 2A EXTERNAL A
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLUG, TUBE FITTING FLARED (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
•
NOMINAL THREAD SIZE: 0.438 INCHES EXTERNAL IN
•
SEAT ANGLE: 50.0 DEGREES
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
CONNECTION STYLE: FLARED
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A EXTERNAL A
HEAD HEIGHT0.250 INCHES NOMINAL IN
STYLE DESIGNATORPLUG, TUBE FITTING FLARED (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
NOMINAL THREAD SIZE0.438 INCHES EXTERNAL IN
SEAT ANGLE50.0 DEGREES
OVERALL LENGTH0.688 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND EXTERNAL
CONNECTION STYLEFLARED
MATERIALALUMINUM ALLOY OVERALL
THREAD SERIES DESIGNATORUNF EXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
30071Interchangeable
interchangeable cross-reference
interchangeable
30-177Interchangeable
interchangeable cross-reference
interchangeable
HS-2Interchangeable
interchangeable cross-reference
interchangeable
23560Interchangeable
interchangeable cross-reference
interchangeable
27937Interchangeable
interchangeable cross-reference
interchangeable
47131Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 418100A?
418100A is a PLUG,TUBE FITTING,THREADED.
What parts can replace 418100A?
There are 11 known substitutes for 418100A: 30071, 30-177, HS-2 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 418100A?
418100A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-283-8209. 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