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7NG0057 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7NG0057: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, leg_length: 1.698 INCHES NOMINAL ALL ENDS IN, 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. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-705-5262, 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
NSN: 4730-01-705-5262
NIINs: 017055262, 017055619, 017055880, 017056164, 017056987, 017194556
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
leg_length1.698 INCHES NOMINAL ALL ENDS IN
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
media_for_which_designedAERONAUTICAL FLUID SINGLE RESPONSE
nominal_outside_diameter1.125 INCHES ALL ENDS IN
material_document_and_classificationAMS4965 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-705-5262
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7NG0057 · 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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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-PRF-46010 DEF STAN/SPEC SINGLE TREATMENT RESPONSE OVERALL
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CONNECTION STYLE: PLAIN (TUBE) ALL ENDS
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CONNECTION TYPE: THREADED INTERNAL TUBE ALL ENDS
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS4965 AEROSPACE MATERIAL SPEC STD 13TH MATERIAL RESPONSE OVERALL
•
OPERATING PRESSURE: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
LEG LENGTH: 1.364 INCHES NOMINAL ALL ENDS IN
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NOMINAL OUTSIDE DIAMETER: 0.875 INCHES ALL ENDS IN
•
SURFACE TREATMENT: LUBRICANT DRY FILM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-PRF-46010 DEF STAN/SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL TUBE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4965 AEROSPACE MATERIAL SPEC STD 13TH MATERIAL RESPONSE OVERALL
OPERATING PRESSURE5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH1.364 INCHES NOMINAL ALL ENDS IN
NOMINAL OUTSIDE DIAMETER0.875 INCHES ALL ENDS IN
SURFACE TREATMENTLUBRICANT DRY FILM OVERALL
MEDIA FOR WHICH DESIGNEDAERONAUTICAL FLUID SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYCONNECTOR, EXPANDER, BEAM SEAL, FEMALE TO FEMALE, 500 PSI
SUBSTITUTES & CROSS-REFERENCES 2
AP319T08Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AFP3313T0808Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7NG0057?
7NG0057 is a COUPLING,TUBE.
What parts can replace 7NG0057?
There are 2 known substitutes for 7NG0057: AP319T08, AFP3313T0808. Substitute compatibility should be verified for your specific system.
What is the NSN for 7NG0057?
7NG0057 is cataloged in the U.S. Government catalog under NSN 4730-01-705-5262. 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.