PartsTable
Technical Data Sheet
MS51525A8-12S ✓ 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: 37.0 DEGREES FIRST END, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: FLARED (TUBE) FIRST END, special_features: WEAPON SYSTEM ESSENTIAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-885-7277, 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
MS51525A8-12S
NSN: 4730-00-885-7277
FSC: 4730
CAGE: 22031 — AIR-WAY MANUFACTURING COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleFLARED (TUBE) FIRST END
special_featuresWEAPON SYSTEM ESSENTIAL
surface_treatmentPASSIVATE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.062 INCHES SECOND END IN
maximum_operating_temp107.2 CELSIUS SINGLE RESPONSE DEGC
nominal_overall_length1.760 INCHES IN
end_item_identificationLIGHT ARMORED VEHICLE (LAV)
NSN4730-00-885-7277
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51525A8-12S · 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 TYPE: THREADED EXTERNAL BOSS SECOND END
NOMINAL THREAD SIZE: 1.062 INCHES SECOND END IN
MAXIMUM OPERATING TEMP: 107.2 CELSIUS SINGLE RESPONSE DEGC
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
CRITICALITY CODE JUSTIFICATION: FEAT
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL THREAD SIZE1.062 INCHES SECOND END IN
MAXIMUM OPERATING TEMP107.2 CELSIUS SINGLE RESPONSE DEGC
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE AND 1 PREFORMED PACKING
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
CRITICALITY CODE JUSTIFICATIONFEAT
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
SURFACE TREATMENTPASSIVATE OVERALL
SEAT ANGLE37.0 DEGREES FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
2-8-12Interchangeable
interchangeable cross-reference
interchangeable
4105-3/4-8Interchangeable
interchangeable cross-reference
interchangeable
C35315X8X12Interchangeable
interchangeable cross-reference
interchangeable
F10271Interchangeable
interchangeable cross-reference
interchangeable
2265135-11Interchangeable
Same NIIN cross-reference
interchangeable
8-12F5BXSSInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51525A8-12S?
MS51525A8-12S is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS51525A8-12S?
There are 9 known substitutes for MS51525A8-12S: 2-8-12, 4105-3/4-8, C35315X8X12 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51525A8-12S?
MS51525A8-12S is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-885-7277. This indicates validated use in U.S. government and defense supply chains.
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