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HS8HBU-B — NIPPLE,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

HS8HBU-B: NIPPLE,TUBE.

The NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 8.5 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: INVERTED FLARE (TUBE) ALL ENDS, style_designator: CENTER WRENCHING FACILITY W/ THREADED RELIEF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-218-8386, 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
HS8HBU-B
NSN: 4730-01-218-8386
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle8.5 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleINVERTED FLARE (TUBE) ALL ENDS
style_designatorCENTER WRENCHING FACILITY W/ THREADED RELIEF
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length1.094 INCHES IN
thread_series_designatorUNF ALL ENDS
furnished_items_and_quantity2 NUT WITH SLEEVE
nominal_outside_diameter_tube_accommodated0.500 INCHES ALL ENDS IN
NSN4730-01-218-8386
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: HS8HBU-B · 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
•
FURNISHED ITEMS AND QUANTITY: 2 NUT WITH SLEEVE
•
CONNECTION STYLE: INVERTED FLARE (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.094 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: CENTER WRENCHING FACILITY W/ THREADED RELIEF
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
SEAT ANGLE: 8.5 DEGREES ALL ENDS
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 NUT WITH SLEEVE
CONNECTION STYLEINVERTED FLARE (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.094 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORCENTER WRENCHING FACILITY W/ THREADED RELIEF
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SEAT ANGLE8.5 DEGREES ALL ENDS
THREAD CLASS3A ALL ENDS A
MATERIALCOPPER ALLOY OVERALL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
762-FB-08Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HS8HBU-B?
HS8HBU-B is a NIPPLE,TUBE.
What parts can replace HS8HBU-B?
There is 1 known substitute for HS8HBU-B: 762-FB-08. Substitute compatibility should be verified for your specific system.
What is the NSN for HS8HBU-B?
HS8HBU-B is cataloged in the U.S. Government catalog under NSN 4730-01-218-8386. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.