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Technical Data Sheet
PartsTable / COMPONENT / B8-1U
B8-1U ✓ 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 NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, leg_length: 0.453 INCHES MINIMUM ALL ENDS IN, seat_angle: 20.000 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_style: FLARELESS (TUBE) ALL ENDS, style_designator: FLARELESS W/ CENTER WRENCHING FACILITY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-061-0392, 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
B8-1U
NSN: 4730-00-061-0392
FSC: 4730
CAGE: 14971 — TYLOK INTERNATIONAL, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length0.453 INCHES MINIMUM ALL ENDS IN
seat_angle20.000 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_styleFLARELESS (TUBE) ALL ENDS
style_designatorFLARELESS W/ CENTER WRENCHING FACILITY
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length2.156 INCHES IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorUNEF ALL ENDS
furnished_items_and_quantity2 SHORT COUPLING NUT WITH SLEEVE AND 2 FERRULE SLEEVE
nominal_outside_diameter_tube_accommodated0.500 INCHES ALL ENDS IN
NSN4730-00-061-0392
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B8-1U · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
SEAT ANGLE: 20.000 DEGREES ALL ENDS
•
THREAD SERIES DESIGNATOR: UNEF ALL ENDS
•
NOMINAL OVERALL LENGTH: 2.156 INCHES IN
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: FLARELESS W/ CENTER WRENCHING FACILITY
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
SEAT ANGLE20.000 DEGREES ALL ENDS
THREAD SERIES DESIGNATORUNEF ALL ENDS
NOMINAL OVERALL LENGTH2.156 INCHES IN
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
STYLE DESIGNATORFLARELESS W/ CENTER WRENCHING FACILITY
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
LEG LENGTH0.453 INCHES MINIMUM ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
8106Interchangeable
interchangeable cross-reference
interchangeable
RELEASE 3815Interchangeable
interchangeable cross-reference
interchangeable
093-3Interchangeable
interchangeable cross-reference
interchangeable
2153-06-00Interchangeable
interchangeable cross-reference
interchangeable
190008AInterchangeable
interchangeable cross-reference
interchangeable
190008BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B8-1U?
B8-1U is a NIPPLE,TUBE.
What parts can replace B8-1U?
There are 17 known substitutes for B8-1U: 8106, RELEASE 3815, 093-3 and 14 more. Substitute compatibility should be verified for your specific system.
Is B8-1U still available?
B8-1U is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026