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7NG0057-0608 — UNION,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7NG0057-0608: UNION,TUBE.

The UNION,TUBE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, connection_type: THREADED INTERNAL TUBE ALL ENDS, connection_style: SWIVEL NUT, COMPRESSION (TUBE) ALL ENDS, style_designator: SWIVEL, WRENCHING FACILITIES EACH END, surface_treatment: LUBRICANT DRY FILM OVERALL, operating_pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-719-4556, 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
7NG0057-0608
NSN: 4730-01-719-4556
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1SFN4 — NORTHROP GRUMMAN SYSTEMS CORP INTEGRATED SYSTEMS SECTOR (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
connection_typeTHREADED INTERNAL TUBE ALL ENDS
connection_styleSWIVEL NUT, COMPRESSION (TUBE) ALL ENDS
style_designatorSWIVEL, WRENCHING FACILITIES EACH END
surface_treatmentLUBRICANT DRY FILM OVERALL
operating_pressure5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_overall_length1.372 INCHES IN
end_item_identificationSPECIAL, AIR VEHICLE, AIRCRAFT
material_document_and_classificationAMS4965 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyCONNECTOR, EXPANDER, BEAM SEAL, FEMALE TO FEMALE, 5000 PSI
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
surface_treatment_document_and_classificationAS5272, TYPE 1 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-719-4556
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7NG0057-0608 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AS5272, TYPE 1 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: SWIVEL NUT, COMPRESSION (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.372 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: SWIVEL, WRENCHING FACILITIES EACH END
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4965 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAS5272, TYPE 1 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLESWIVEL NUT, COMPRESSION (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.372 INCHES IN
CONNECTION TYPETHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORSWIVEL, WRENCHING FACILITIES EACH END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4965 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
OPERATING PRESSURE5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SURFACE TREATMENTLUBRICANT DRY FILM OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
AFP3313T0608Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AP319T0806Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7NG0057Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
R45280T-0608Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7NG0057-0608?
7NG0057-0608 is a UNION,TUBE.
What parts can replace 7NG0057-0608?
There are 4 known substitutes for 7NG0057-0608: AFP3313T0608, AP319T0806, 7NG0057 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7NG0057-0608?
7NG0057-0608 is cataloged in the U.S. Government catalog under NSN 4730-01-719-4556. 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.