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8-4 HTX-SS — NIPPLE,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

8-4 HTX-SS: NIPPLE,TUBE.

The NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, style_designator: FLARED W/ CENTER WRENCHING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-620-9544, 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
8-4 HTX-SS
NSN: 4730-01-620-9544
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle37.0 DEGREES ALL ENDS
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_thread_size0.750 INCHES FIRST END IN
nominal_overall_length1.520 INCHES IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_quantity_per_inch20 SECOND END
thread_series_designatorUN ALL ENDS
part_name_assigned_by_controlling_agencyADAPTER,STRAIGHT
NSN4730-01-620-9544
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8-4 HTX-SS · 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
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.520 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES SECOND END IN
•
NOMINAL THREAD SIZE: 0.4375 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.520 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
NOMINAL THREAD SIZE0.4375 INCHES SECOND END IN
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES ALL ENDS
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8-4 HTX-SS?
8-4 HTX-SS is a NIPPLE,TUBE.
What is the NSN for 8-4 HTX-SS?
8-4 HTX-SS is cataloged in the U.S. Government catalog under NSN 4730-01-620-9544. 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.