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2178-50 — CYLINDER BLOCK,HYDRAULIC MOTOR-P

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2178-50: CYLINDER BLOCK,HYDRAULIC MOTOR-P.

CYLINDER BLOCK,HYDRAULIC MOTOR-P. Key specifications include end_item_identification: W/S CODE JG, SEAWOLF CLASS SSN, general_characteristics_item_description: MATERIAL BRONZE PER MATERIAL SPEC V5-2-1-2-7. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-150-5409, 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
2178-50
NSN: 4730-01-150-5409
NIINs: 011505409, 013777097
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 07418 — JOSLYN SUNBANK COMPANY, LLC DBA JOSLYN SUNBANK CO LLC (USA)
SPECIFICATIONS
end_item_identificationW/S CODE JG, SEAWOLF CLASS SSN
general_characteristics_item_descriptionMATERIAL BRONZE PER MATERIAL SPEC V5-2-1-2-7
NSN4730-01-150-5409
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2178-50 · 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: MIL-C-26074,CL 3 OR 4,GRADEB MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.922 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 1.000 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-26074,CL 3 OR 4,GRADEB MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLESOCKET (HOSE) FIRST END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.500 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.922 INCHES FIRST END IN
NOMINAL OVERALL LENGTH1.000 INCHES IN
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPEUNTHREADED INTERNAL HOSE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE1.875 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 2
13142701-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
13142701Reference document
Same NSN cross-reference
Reference document — Drawing number 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 2178-50?
2178-50 is a CYLINDER BLOCK,HYDRAULIC MOTOR-P.
What parts can replace 2178-50?
There are 2 known substitutes for 2178-50: 13142701-1, 13142701. Substitute compatibility should be verified for your specific system.
What is the NSN for 2178-50?
2178-50 is cataloged in the U.S. Government catalog under NSN 4730-01-150-5409. This indicates validated use in U.S. government and defense supply chains.
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