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MS51820-3 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS51820-3: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.890 INCHES NOMINAL ALL ENDS IN, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-944-1553, 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
MS51820-3
NSN: 4730-00-944-1553
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 98660 — LUBE DEVICES INC FLODAR FLUID POWER FITTINGS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle90.0 DEGREES
leg_length0.890 INCHES NOMINAL ALL ENDS IN
seat_angle12.0 DEGREES ALL ENDS
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.438 INCHES ALL ENDS IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorUNF ALL ENDS
nondefinitive_spec/std_data21D FIGURE
NSN4730-00-944-1553
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51820-3 · 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
•
FURNISHED ITEMS AND QUANTITY: 2 TUBE COUPLING NUT W/SLEEVE
•
FLOW ANGLE: 90.0 DEGREES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: J514 ASSN STD SINGLE TREATMENT RESPONSE AND QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
LEG LENGTH: 0.890 INCHES NOMINAL ALL ENDS IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 TUBE COUPLING NUT W/SLEEVE
FLOW ANGLE90.0 DEGREES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONJ514 ASSN STD SINGLE TREATMENT RESPONSE AND QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH0.890 INCHES NOMINAL ALL ENDS IN
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SEAT ANGLE12.0 DEGREES ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 5
P8505X4Reference document
Same NSN cross-reference
Reference document — Secondary reference
4-4 080201CAReference document
Same NSN cross-reference
Reference document — Secondary reference
J514Reference document
Same NSN cross-reference
Reference document — Secondary reference
4730009441553Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILF18866Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS51820-3?
MS51820-3 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS51820-3?
There are 5 known substitutes for MS51820-3: P8505X4, 4-4 080201CA, J514 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51820-3?
MS51820-3 is cataloged in the U.S. Government catalog under NSN 4730-00-944-1553. This indicates validated use in U.S. government and defense supply chains.
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