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52155K55 — ADAPTER,STRAIGHT,FLANGE TO GROOV

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

52155K55: ADAPTER,STRAIGHT,FLANGE TO GROOV.

ADAPTER,STRAIGHT,FLANGE TO GROOV. Key specifications include connection_type: THREADED INTERNAL PIPE INLET, special_features: MATERIAL: BRASS. ITEM: PLUGS WITH THREADED FEMALE PIPE CONNECTION ALSO KNOWN AS A ADAPTERS, style_designator: GROOVED AND THREADED EXTERNAL, nominal_thread_size: 2.375 INCHES INLET IN, seat_nominal_radius: 2.00 INCHES SECOND END IN, maximum_operating_temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-617-7035, 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
52155K55
NSN: 4730-01-617-7035
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
connection_typeTHREADED INTERNAL PIPE INLET
special_featuresMATERIAL: BRASS. ITEM: PLUGS WITH THREADED FEMALE PIPE CONNECTION ALSO KNOWN AS A ADAPTERS
style_designatorGROOVED AND THREADED EXTERNAL
nominal_thread_size2.375 INCHES INLET IN
seat_nominal_radius2.00 INCHES SECOND END IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_series_designatorNPT INLET
nominal_pipe_size_accommodated2.00 INCHES INLET IN
part_name_assigned_by_controlling_agencyCOUPLING, C-G, HOSE
NSN4730-01-617-7035
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 52155K55 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 2.00 INCHES INLET IN
•
SEAT NOMINAL RADIUS: 2.00 INCHES SECOND END IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE INLET
•
STYLE DESIGNATOR: GROOVED AND THREADED EXTERNAL
•
NOMINAL THREAD SIZE: 2.375 INCHES INLET IN
•
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED2.00 INCHES INLET IN
SEAT NOMINAL RADIUS2.00 INCHES SECOND END IN
CONNECTION TYPETHREADED INTERNAL PIPE INLET
STYLE DESIGNATORGROOVED AND THREADED EXTERNAL
NOMINAL THREAD SIZE2.375 INCHES INLET IN
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
SPECIAL FEATURESMATERIAL: BRASS. ITEM: PLUGS WITH THREADED FEMALE PIPE CONNECTION ALSO KNOWN AS A ADAPTERS
PART NAME ASSIGNED BY CONTROLLING AGENCYCOUPLING, C-G, HOSE
THREAD SERIES DESIGNATORNPT INLET
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 52155K55?
52155K55 is a ADAPTER,STRAIGHT,FLANGE TO GROOV.
What is the NSN for 52155K55?
52155K55 is cataloged in the U.S. Government catalog under NSN 4730-01-617-7035. 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.