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6826K79 — Technical Data Sheet

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— · 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 COUPLING,PIPE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: THREADED INTERNAL, nominal_thread_size: 0.500 INCHES ALL ENDS IN, nominal_overall_length: 2.000 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-01-084-3576, 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
6826K79
NSN: 4730-01-084-3576
FSC: 4730
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorTHREADED INTERNAL
nominal_thread_size0.500 INCHES ALL ENDS IN
nominal_overall_length2.000 INCHES IN
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data1/2 IN. SIZE IN
specification/standard_data81346-ASTM F437 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
material_document_and_classificationASTM D1784 CLASS 23447B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-084-3576
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6826K79 · 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 DOCUMENT AND CLASSIFICATION: ASTM D1784 CLASS 23447B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
•
NONDEFINITIVE SPEC/STD DATA: 1/2 IN. SIZE IN
•
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 2.000 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
SPECIFICATION/STANDARD DATA: 81346-ASTM F437 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D1784 CLASS 23447B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
NONDEFINITIVE SPEC/STD DATA1/2 IN. SIZE IN
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH2.000 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
SPECIFICATION/STANDARD DATA81346-ASTM F437 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORTHREADED INTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
3M859DInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1850-005InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
ASTM-F437InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
05014012InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4589K47InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MILP22011InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6826K79?
6826K79 is a COUPLING,PIPE.
What parts can replace 6826K79?
There are 18 known substitutes for 6826K79: 3M859D, 1850-005, ASTM-F437 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6826K79?
6826K79 is cataloged in the Federal Logistics Information System under NSN 4730-01-084-3576. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026