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CRN2811 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

CRN2811: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE SECOND END, connection_style: PLAIN (TUBE) SECOND END, special_features: OLIVE DRAB, style_designator: THREADED INTERNAL SWIVEL, THREADED INTERNAL RIGID. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-294-1772, 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
CRN2811
NSN: 4730-01-294-1772
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 05593 — SAFRAN ELECTRICAL COMPONENTS USA, INC DIV SAFRAN ELECTRICAL COMPONENTS USA (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE SECOND END
connection_stylePLAIN (TUBE) SECOND END
special_featuresOLIVE DRAB
style_designatorTHREADED INTERNAL SWIVEL, THREADED INTERNAL RIGID
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.625 INCHES SECOND END IN
nominal_overall_length1.920 INCHES IN
thread_series_designatorUNEF FIRST END
material_document_and_classificationC46400-THRU-C46700 MFR REF SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.375 INCHES SECOND END IN
NSN4730-01-294-1772
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CRN2811 · 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: QQ-P-416,TYII,CLI FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: PLAIN (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 1.920 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL TUBE SECOND END
•
STYLE DESIGNATOR: THREADED INTERNAL SWIVEL, THREADED INTERNAL RIGID
•
MATERIAL DOCUMENT AND CLASSIFICATION: C46400-THRU-C46700 MFR REF SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYII,CLI FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEPLAIN (TUBE) SECOND END
CONNECTION STYLESWIVEL NUT, GASKET SEAL (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.920 INCHES IN
CONNECTION TYPETHREADED INTERNAL TUBE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
STYLE DESIGNATORTHREADED INTERNAL SWIVEL, THREADED INTERNAL RIGID
MATERIAL DOCUMENT AND CLASSIFICATIONC46400-THRU-C46700 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 3
TS1183Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5262639Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
4730PL0976593Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 CRN2811?
CRN2811 is a COUPLING,TUBE.
What parts can replace CRN2811?
There are 3 known substitutes for CRN2811: TS1183, 5262639, 4730PL0976593. Substitute compatibility should be verified for your specific system.
What is the NSN for CRN2811?
CRN2811 is cataloged in the U.S. Government catalog under NSN 4730-01-294-1772. 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.