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4RBU-SS — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4RBU-SS: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, leg_length: 0.891 INCHES NOMINAL THIRD END IN, seat_angle: 12.0 DEGREES THIRD END, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE FIRST END, special_features: MATERIAL; STAINLESS STEEL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-142-7884, 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
4RBU-SS
NSN: 4730-01-142-7884
NIINs: 011427884, 013093398
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
leg_length0.891 INCHES NOMINAL THIRD END IN
seat_angle12.0 DEGREES THIRD END
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE FIRST END
special_featuresMATERIAL; STAINLESS STEEL
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.500 INCHES ALL ENDS IN
media_for_which_designedHYDRAULIC FLUID FIRST RESPONSE
thread_series_designatorUNF ALL ENDS
specification/standard_data96906-MS51892 GOVERNMENT STANDARD
furnished_items_and_quantity1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
NSN4730-01-142-7884
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4RBU-SS · 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
SUBSTITUTES & CROSS-REFERENCES 6
MIL-DTL-18866Reference document
Same NSN cross-reference
Reference document — Identification reference
508-D-7537Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
845-7512Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS51824-3SSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4RBU-MReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
508-D-7537 ITEM 4Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4RBU-SS?
4RBU-SS is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 4RBU-SS?
There are 6 known substitutes for 4RBU-SS: MIL-DTL-18866, 508-D-7537, 845-7512 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4RBU-SS?
4RBU-SS is cataloged in the U.S. Government catalog under NSN 4730-01-142-7884. This indicates validated use in U.S. government and defense supply chains.
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