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Technical Data Sheet
PartsTable / COMPONENT / MS51507B8
MS51507B8 ✓ 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 ELBOW,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 12L14 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.360 INCHES NOMINAL SECOND END IN, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 2A FIRST END BULKHEAD A, connection_type: THREADED EXTERNAL TUBE FIRST END BULKHEAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-041-1398, 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
MS51507B8
NSN: 4730-01-041-1398
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_length1.360 INCHES NOMINAL SECOND END IN
seat_angle37.0 DEGREES ALL ENDS
thread_class2A FIRST END BULKHEAD A
connection_typeTHREADED EXTERNAL TUBE FIRST END BULKHEAD
connection_styleFLARED (TUBE) ALL ENDS
surface_treatmentCADMIUM AND CHROMATE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.750 INCHES ALL ENDS IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
NSN4730-01-041-1398
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51507B8 · 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
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END BULKHEAD IN
•
SPECIFICATION/STANDARD DATA: 96906-MS51507 GOVERNMENT STANDARD AND 81343-SAE J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SEAT ANGLE: 37.0 DEGREES ALL ENDS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OR ASTM A576,UNS G12144 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END BULKHEAD IN
SPECIFICATION/STANDARD DATA96906-MS51507 GOVERNMENT STANDARD AND 81343-SAE J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SEAT ANGLE37.0 DEGREES ALL ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OR ASTM A576,UNS G12144 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA7A FIGURE A
MATERIALSTEEL COMP 12L14 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
3833525Interchangeable
interchangeable cross-reference
interchangeable
C5525X8Interchangeable
interchangeable cross-reference
interchangeable
817558Interchangeable
interchangeable cross-reference
interchangeable
8WETXSInterchangeable
interchangeable cross-reference
interchangeable
SAE J514 8-8 070701CInterchangeable
interchangeable cross-reference
interchangeable
SAE J514/1 8-8 070701CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51507B8?
MS51507B8 is a ELBOW,TUBE.
What parts can replace MS51507B8?
There are 10 known substitutes for MS51507B8: 3833525, C5525X8, 817558 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51507B8?
MS51507B8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-041-1398. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026