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Technical Data Sheet
PartsTable / COMPONENT / MS51525A24Z
MS51525A24Z ✓ 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 CORROSION RESISTING OVERALL, seat_angle: 37.000 DEGREES FIRST END, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-464-9113, 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
MS51525A24Z
NSN: 4730-01-464-9113
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle37.000 DEGREES FIRST END
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
special_featuresTHREADS IN ACCORDANCE WITH FED-STD-H28; SLEEVE PER MS51533; O-RING PER MS28778;NUT PER MS51531; MS51525 ITEM IS IN ACCORDANCE WITH MIL-F-18866
surface_treatmentZINC OVERALL
nominal_thread_size1.875 INCHES ALL ENDS IN
nominal_overall_length2.370 INCHES IN
end_item_identification2320-01-123-1610
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUN ALL ENDS
NSN4730-01-464-9113
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51525A24Z · 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
•
NONDEFINITIVE SPEC/STD DATA: B24Z FIGURE
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
•
SPECIFICATION/STANDARD DATA: 96906-MS51525 GOVERNMENT SPECIFICATION
•
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
•
NOMINAL OVERALL LENGTH: 2.370 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATAB24Z FIGURE
SPECIAL FEATURESTHREADS IN ACCORDANCE WITH FED-STD-H28; SLEEVE PER MS51533; O-RING PER MS28778;NUT PER MS51531; MS51525 ITEM IS IN ACCORDANCE WITH MIL-F-18866
MATERIALSTEEL CORROSION RESISTING OVERALL
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
SPECIFICATION/STANDARD DATA96906-MS51525 GOVERNMENT SPECIFICATION
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
NOMINAL OVERALL LENGTH2.370 INCHES IN
CONNECTION STYLEFLARED (TUBE) FIRST END
THREAD QUANTITY PER INCH12 ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
C5315X6X8Interchangeable
interchangeable cross-reference
interchangeable
6-8F5BXSInterchangeable
interchangeable cross-reference
interchangeable
MS51525A6-8Interchangeable
interchangeable cross-reference
interchangeable
10-12F5X-SSInterchangeable
interchangeable cross-reference
interchangeable
MS51525B10-12Interchangeable
interchangeable cross-reference
interchangeable
10-12F5BXSSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51525A24Z?
MS51525A24Z is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS51525A24Z?
There are 15 known substitutes for MS51525A24Z: C5315X6X8, 6-8F5BXS, MS51525A6-8 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51525A24Z?
MS51525A24Z is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-464-9113. 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