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Technical Data Sheet
PartsTable / COMPONENT / SS-6-HRN-4
SS-6-HRN-4 ✓ 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,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, reducer_type: CONCENTRIC, connection_type: THREADED EXTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND END, special_features: CLEAN PER CAJON CO. CA-6, operating_pressure: 7500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-467-2601, 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-6-HRN-4
NSN: 4730-00-467-2601
FSC: 4730
CAGE: 11649 — CAJON CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
reducer_typeCONCENTRIC
connection_typeTHREADED EXTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
special_featuresCLEAN PER CAJON CO. CA-6
operating_pressure7500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.375 INCHES FIRST END IN
nominal_overall_length1.430 INCHES IN
media_for_which_designedOXYGEN, LIQUID SINGLE RESPONSE
thread_series_designatorNPT FIRST END
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsSPECIAL CLEAN FOR LOX SERVICE
NSN4730-00-467-2601
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS-6-HRN-4 · 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 THREAD SIZE: 0.375 INCHES FIRST END0.375 INCHES FIRST END IN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL WIDTH ACROSS FLATS: 0.750 INCHES ALL ENDS IN
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES FIRST END0.375 INCHES FIRST END IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
STYLE DESIGNATOR: CENTER WRENCHING FACILITY
•
LEG LENGTH: 0.560 INCHES NOMINAL ALL ENDS0.560 INCHES NOMINAL ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.375 INCHES FIRST END0.375 INCHES FIRST END IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL WIDTH ACROSS FLATS0.750 INCHES ALL ENDS IN
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES FIRST END0.375 INCHES FIRST END IN
MATERIAL DOCUMENT AND CLASSIFICATIONFED 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
STYLE DESIGNATORCENTER WRENCHING FACILITY
LEG LENGTH0.560 INCHES NOMINAL ALL ENDS0.560 INCHES NOMINAL ALL ENDS IN
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END0.250 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.453 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
SAE J514-3 6-4 140137CInterchangeable
interchangeable cross-reference
interchangeable
443991Interchangeable
interchangeable cross-reference
interchangeable
5404-6-4Interchangeable
interchangeable cross-reference
interchangeable
SS-6-HRN-4Interchangeable
interchangeable cross-reference
interchangeable
1551AS676-5Interchangeable
interchangeable cross-reference
interchangeable
1551AS676Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SS-6-HRN-4?
SS-6-HRN-4 is a NIPPLE,PIPE.
What parts can replace SS-6-HRN-4?
There are 14 known substitutes for SS-6-HRN-4: SAE J514-3 6-4 140137C, 443991, 5404-6-4 and 11 more. Substitute compatibility should be verified for your specific system.
Is SS-6-HRN-4 still available?
SS-6-HRN-4 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