PartsTable
Technical Data Sheet
MS51527B-12 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 12L14 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.660 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS SECOND END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-011-7736, 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
MS51527B-12
NSN: 4730-01-011-7736
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 12L14 OVERALL
flow_angle90.0 DEGREES
leg_length1.660 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES FIRST END
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleFLARED (TUBE) FIRST END
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.068 INCHES ALL ENDS IN
maximum_operating_temp400.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationCARRIER, PERSONNEL, FULL TRACKED, ARMORED
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
NSN4730-01-011-7736
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51527B-12 · 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
CONNECTION STYLE: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END
THREAD CLASS: 2A ALL ENDS A
LEG LENGTH: 1.940 INCHES NOMINAL SECOND END IN
THREAD QUANTITY PER INCH: 12 ALL ENDS
FLOW ANGLE: 90.0 DEGREES
FURNISHED ITEMS AND QUANTITY: 1 LOCKNUT AND 1 FLAT WASHER AND 1 TUBE COUPLING AND 1 FLARED SLEEVE
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEDOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END
THREAD CLASS2A ALL ENDS A
LEG LENGTH1.940 INCHES NOMINAL SECOND END IN
CONNECTION STYLEFLARED (TUBE) FIRST END
THREAD QUANTITY PER INCH12 ALL ENDS
FLOW ANGLE90.0 DEGREES
FURNISHED ITEMS AND QUANTITY1 LOCKNUT AND 1 FLAT WASHER AND 1 TUBE COUPLING AND 1 FLARED SLEEVE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SEAT ANGLE37.0 DEGREES FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
C5515X20Interchangeable
interchangeable cross-reference
interchangeable
2503-20-20Interchangeable
interchangeable cross-reference
interchangeable
107A-0091Interchangeable
interchangeable cross-reference
interchangeable
4730010260446Interchangeable
interchangeable cross-reference
interchangeable
4730PL0649962Interchangeable
interchangeable cross-reference
interchangeable
6BCACInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51527B-12?
MS51527B-12 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS51527B-12?
There are 29 known substitutes for MS51527B-12: C5515X20, 2503-20-20, 107A-0091 and 26 more. Substitute compatibility should be verified for your specific system.
Is MS51527B-12 still available?
MS51527B-12 is currently cancelled.
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