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PartsTable / COMPONENT / 511-056
511-056 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL CORROSION RESISTING BAND, overall_width: 14.1 MILLIMETERS MINIMUM AND 14.4 MILLIMETERS MAXIMUM MM, inside_diameter: 26.0 MILLIMETERS MINIMUM AND 100.0 MILLIMETERS MAXIMUM MM, special_features: SNAPLOCK SWIVEL ACTION, style_designator: WIRE, surface_treatment: ZINC SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-132-9948, 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
511-056
NSN: 4730-00-132-9948
FSC: 4730
CAGE: 35871 — ACD TRIDON INC (CAN)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BAND
overall_width14.1 MILLIMETERS MINIMUM AND 14.4 MILLIMETERS MAXIMUM MM
inside_diameter26.0 MILLIMETERS MINIMUM AND 100.0 MILLIMETERS MAXIMUM MM
special_featuresSNAPLOCK SWIVEL ACTION
style_designatorWIRE
surface_treatmentZINC SCREW
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
NSN4730-00-132-9948
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 511-056 · 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: STEEL SCREW
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
SURFACE TREATMENT: ZINC SCREW
•
STYLE DESIGNATOR: WIRE
•
INSIDE DIAMETER: 26.0 MILLIMETERS MINIMUM AND 100.0 MILLIMETERS MAXIMUM MM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL SCREW
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
OVERALL WIDTH14.1 MILLIMETERS MINIMUM AND 14.4 MILLIMETERS MAXIMUM MM
MATERIALSTEEL CORROSION RESISTING BAND
SURFACE TREATMENTZINC SCREW
SPECIAL FEATURESSNAPLOCK SWIVEL ACTION
STYLE DESIGNATORWIRE
INSIDE DIAMETER26.0 MILLIMETERS MINIMUM AND 100.0 MILLIMETERS MAXIMUM MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
5856Interchangeable
interchangeable cross-reference
interchangeable
5656Interchangeable
interchangeable cross-reference
interchangeable
A-A-20032Interchangeable
interchangeable cross-reference
interchangeable
12-422Interchangeable
interchangeable cross-reference
interchangeable
1801763Interchangeable
interchangeable cross-reference
interchangeable
JAN5656Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 511-056?
511-056 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 511-056?
There are 19 known substitutes for 511-056: 5856, 5656, A-A-20032 and 16 more. Substitute compatibility should be verified for your specific system.
Is 511-056 still available?
511-056 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