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6780811 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6780811: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE 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, surface_treatment: PASSIVATE OVERALL, nominal_thread_size: 0.500 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-972-8770, 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
6780811
NSN: 4730-00-972-8770
NIINs: 009728770, 014681896
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
reducer_typeCONCENTRIC
connection_typeTHREADED EXTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.500 INCHES FIRST END IN
nominal_overall_length1.100 INCHES IN
end_item_identification7M RIGID BOAT
thread_quantity_per_inch14 FIRST END
thread_series_designatorNPT SECOND END
material_document_and_classificationSAE J514 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
reduced_passage_nominal_inside_diameter0.125 INCHES ALL ENDS IN
NSN4730-00-972-8770
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6780811 · 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
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WORKING TEMP AND SERVICE TYPE: 250.0 DEG FAHRENHEIT NOMINAL WATER AND 250.0 DEG FAHRENHEIT NOMINAL OIL AND 250.0 DEG FAHRENHEIT NOMINAL GAS AND 250.0 DEG FAHRENHEIT NOMINAL AIR
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INTERNAL SCREW THREAD SERIES DESIGNATOR: NPTF
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
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MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66, COMP 316 FED STD SINGLE MATERIAL RESPONSE
•
SPECIFICATION/STANDARD DATA: 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
EXTERNAL SCREW THREAD SERIES DESIGNATOR: NPTF
•
NONDEFINITIVE SPEC/STD DATA: 42 FIGURE
TECHNICAL CHARACTERISTICS
WORKING TEMP AND SERVICE TYPE250.0 DEG FAHRENHEIT NOMINAL WATER AND 250.0 DEG FAHRENHEIT NOMINAL OIL AND 250.0 DEG FAHRENHEIT NOMINAL GAS AND 250.0 DEG FAHRENHEIT NOMINAL AIR
INTERNAL SCREW THREAD SERIES DESIGNATORNPTF
INTERNAL THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATOROUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66, COMP 316 FED STD SINGLE MATERIAL RESPONSE
SPECIFICATION/STANDARD DATA81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
EXTERNAL SCREW THREAD SERIES DESIGNATORNPTF
NONDEFINITIVE SPEC/STD DATA42 FIGURE
EXTERNAL THREAD SIZE1/2-14
SURFACE TREATMENTPASSIVATE
SUBSTITUTES & CROSS-REFERENCES 8
0102-8-6CReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3/8X1/2PTRSSReference document
Same NSN cross-reference
Reference document — Secondary reference
3121X8X6Reference document
Same NSN cross-reference
Reference document — Secondary reference
2081-8-6SReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
124-128Reference document
Same NSN cross-reference
Reference document — Secondary reference
2011147Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6780811?
6780811 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 6780811?
There are 8 known substitutes for 6780811: 0102-8-6C, 3/8X1/2PTRSS, 3121X8X6 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6780811?
6780811 is cataloged in the U.S. Government catalog under NSN 4730-00-972-8770. 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.