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Technical Data Sheet
PartsTable / COMPONENT / B-401-PC-2
B-401-PC-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 REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, shank_height: 0.050 INCHES NOMINAL IN, overall_width: 4.250 INCHES NOMINAL IN, neutral_length: 1.500 INCHES NOMINAL IN, overall_height: 0.109 INCHES NOMINAL IN, overall_length: 7.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-467-6233, 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
B-401-PC-2
NSN: 4730-01-467-6233
FSC: 4730
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
shank_height0.050 INCHES NOMINAL IN
overall_width4.250 INCHES NOMINAL IN
neutral_length1.500 INCHES NOMINAL IN
overall_height0.109 INCHES NOMINAL IN
overall_length7.500 INCHES NOMINAL IN
extended_length1.750 INCHES NOMINAL IN
inside_diameter0.156 INCHES NOMINAL IN
outside_diameter0.375 INCHES NOMINAL IN
special_featuresOVERALL DEPTH:0.500 IN.; MAJOR COMPONENTS:CAPACITOR 1; CONNECTOR, ELECTRICAL 1; INTEGRATED CIRCUIT 23; RESISTOR 1; PRINTED WIRING BOARD 1 IN
style_designatorSHOULDER
contracted_length0.360 INCHES NOMINAL IN
NSN4730-01-467-6233
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B-401-PC-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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
10198-3Interchangeable
interchangeable cross-reference
interchangeable
000000-0072.154Interchangeable
interchangeable cross-reference
interchangeable
5L5591-002-52Interchangeable
interchangeable cross-reference
interchangeable
10198300Interchangeable
interchangeable cross-reference
interchangeable
2335Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-401-PC-2?
B-401-PC-2 is a REDUCER,TUBE.
What parts can replace B-401-PC-2?
There are 5 known substitutes for B-401-PC-2: 10198-3, 000000-0072.154, 5L5591-002-52 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-401-PC-2?
B-401-PC-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-467-6233. 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