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255585 PIECE 1 — ADAPTER,STRAIGHT,FLANGE TO FLANG

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

255585 PIECE 1: ADAPTER,STRAIGHT,FLANGE TO FLANG.

ADAPTER,STRAIGHT,FLANGE TO FLANG. Key specifications include material: COPPER ALLOY OVERALL, flange_shape: ROUND WITH HOLES SECOND END, connection_type: FLANGE SECOND END, bolt_hole_quantity: 3 SECOND END, flange_face_design: PLAIN SECOND END, criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-331-6823, 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
255585 PIECE 1
NSN: 4730-01-331-6823
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flange_shapeROUND WITH HOLES SECOND END
connection_typeFLANGE SECOND END
bolt_hole_quantity3 SECOND END
flange_face_designPLAIN SECOND END
criticality_code_justificationZZZY
material_document_and_classificationMIL-C-20159,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN4730-01-331-6823
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 255585 PIECE 1 · 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
•
FLANGE SHAPE: ROUND WITH HOLES SECOND END
•
FLANGE FACE DESIGN: RAISED STRAIGHT FIRST END
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
CONNECTION TYPE: FLANGE SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-20159,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BOLT HOLE QUANTITY: 3 SECOND END
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND WITH HOLES SECOND END
FLANGE FACE DESIGNRAISED STRAIGHT FIRST END
FLANGE FACE DESIGNPLAIN SECOND END
CRITICALITY CODE JUSTIFICATIONZZZY
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPEFLANGE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-20159,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BOLT HOLE QUANTITY3 SECOND END
MATERIALCOPPER ALLOY OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
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
255580 PIECE 4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
255585 PIECE 1L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
255580 PIECE 4L1Same 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 255585 PIECE 1?
255585 PIECE 1 is a ADAPTER,STRAIGHT,FLANGE TO FLANG.
What parts can replace 255585 PIECE 1?
There are 3 known substitutes for 255585 PIECE 1: 255580 PIECE 4, 255585 PIECE 1L1, 255580 PIECE 4L1. Substitute compatibility should be verified for your specific system.
What is the NSN for 255585 PIECE 1?
255585 PIECE 1 is cataloged in the U.S. Government catalog under NSN 4730-01-331-6823. This indicates validated use in U.S. government and defense supply chains.
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