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PartsTable / COMPONENT / SS-400-6-1 ZV
SS-400-6-1 ZV ✓ 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: STEEL COMP 316 OVERALL, seat_angle: 20.0 DEGREES ALL ENDS, reducer_type: CONCENTRIC, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARELESS (TUBE) ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-448-5721, 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
SS-400-6-1 ZV
NSN: 4730-01-448-5721
FSC: 4730
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
seat_angle20.0 DEGREES ALL ENDS
reducer_typeCONCENTRIC
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.438 INCHES FIRST END IN
nominal_overall_length1.350 INCHES IN
end_item_identificationPACER SPECIAL
thread_series_designatorUNF ALL ENDS
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-01-448-5721
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS-400-6-1 ZV · 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
•
NOMINAL OVERALL LENGTH: 1.350 INCHES IN
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
NOMINAL THREAD SIZE: 0.190 INCHES SECOND END IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
THREAD CLASS: 3A ALL ENDS A
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH1.350 INCHES IN
END ITEM IDENTIFICATIONPACER SPECIAL
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
NOMINAL THREAD SIZE0.190 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
THREAD CLASS3A ALL ENDS A
SURFACE TREATMENTPASSIVATE OVERALL
SPECIAL FEATURESTHE ZERO VOLUME (ZV) UNION IS IDENTICAL TO THE LOW VOLUME UNION, EXCEPTTHAT THE 1/16 IN. TUBE DIMENSION IS BORED THROUGH THE EXTENDS ALL THE WAY TOLARGER BORE SO THAT THE 1/16 IN. TUBE CAN BE INSERTED TO THE FRIT IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
MATERIALSTEEL COMP 316 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
4-4 WBZ-BInterchangeable
interchangeable cross-reference
interchangeable
100116-003Interchangeable
interchangeable cross-reference
interchangeable
4BUInterchangeable
interchangeable cross-reference
interchangeable
583RH-3/16-3/8SInterchangeable
interchangeable cross-reference
interchangeable
JF-6Interchangeable
interchangeable cross-reference
interchangeable
56801Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SS-400-6-1 ZV?
SS-400-6-1 ZV is a REDUCER,TUBE.
What parts can replace SS-400-6-1 ZV?
There are 17 known substitutes for SS-400-6-1 ZV: 4-4 WBZ-B, 100116-003, 4BU and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SS-400-6-1 ZV?
SS-400-6-1 ZV is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-448-5721. 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