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7550478-PLC-11401-021 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7550478-PLC-11401-021: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, criticality_code_justification: ZZZY, material_document_and_classification: ASTM A583 TY 303 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL, part_name_assigned_by_controlling_agency: NUT (FERRULE). This part is cataloged in the U.S.

Government catalog under NSN 4730-01-532-5838, 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
7550478-PLC-11401-021
NSN: 4730-01-532-5838
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
criticality_code_justificationZZZY
material_document_and_classificationASTM A583 TY 303 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNUT (FERRULE)
NSN4730-01-532-5838
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7550478-PLC-11401-021 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A583 TY 303 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A583 TY 303 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT (FERRULE)
MATERIALSTEEL CORROSION RESISTING OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
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 7
111861XXD4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PLC-11401 PC 21D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PLC-11401 PC 21Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
111861XXReference document
Same NSN cross-reference
Reference document — Secondary reference
G547-0002-PLC-11401-021D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7550478-PLC-11401-021D4Same 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 7550478-PLC-11401-021?
7550478-PLC-11401-021 is a NUT,TUBE COUPLING.
What parts can replace 7550478-PLC-11401-021?
There are 7 known substitutes for 7550478-PLC-11401-021: 111861XXD4, PLC-11401 PC 21D4, PLC-11401 PC 21 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7550478-PLC-11401-021?
7550478-PLC-11401-021 is cataloged in the U.S. Government catalog under NSN 4730-01-532-5838. This indicates validated use in U.S. government and defense supply chains.
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