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Technical Data Sheet
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42X8 ✓ 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

CABLE ASSEMBLY,POWER,ELECTRICAL. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 45.0 DEGREES ALL ENDS, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, special_features: SAE 8-8-010101B; MATL IS COPPER ALLOY 360. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-873-3885, 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
42X8
NSN: 4730-00-873-3885
FSC: 4730
CAGE: 79470 — DANA CORP WEATHERHEAD DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle45.0 DEGREES ALL ENDS
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
special_featuresSAE 8-8-010101B; MATL IS COPPER ALLOY 360
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length1.790 INCHES IN
thread_series_designatorUNF ALL ENDS
nominal_outside_diameter_tube_accommodated0.500 INCHES ALL ENDS IN
NSN4730-00-873-3885
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 42X8 · 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
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SEAT ANGLE: 45.0 DEGREES ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,1/2H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
THREAD CLASS: 2A ALL ENDS A
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.790 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 1B FIGURE
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SEAT ANGLE45.0 DEGREES ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,1/2H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
THREAD CLASS2A ALL ENDS A
CONNECTION STYLEFLARED (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.790 INCHES IN
NONDEFINITIVE SPEC/STD DATA1B FIGURE
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
FURNISHED ITEMS AND QUANTITY2 TUBE COUPLING NUT W/SLEEVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
SAE J512 8-6 040102BInterchangeable
interchangeable cross-reference
interchangeable
J512Interchangeable
interchangeable cross-reference
interchangeable
SAE J512 14 010111BInterchangeable
interchangeable cross-reference
interchangeable
41F78Interchangeable
interchangeable cross-reference
interchangeable
3335CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42X8?
42X8 is a CABLE ASSEMBLY,POWER,ELECTRICAL.
What parts can replace 42X8?
There are 27 known substitutes for 42X8: SAE-J512, SAE J512 8-6 040102B, J512 and 24 more. Substitute compatibility should be verified for your specific system.
Is 42X8 still available?
42X8 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