PartsTable
Technical Data Sheet
MS51534A ✓ 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 OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, reducer_type: CONCENTRIC, thread_class: 2A ALL ENDS A, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-030-5207, 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
MS51534A
NSN: 4730-01-030-5207
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle37.0 DEGREES ALL ENDS
reducer_typeCONCENTRIC
thread_class2A ALL ENDS A
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.438 INCHES SECOND END IN
nominal_overall_length1.030 INCHES IN
thread_series_designatorUNF ALL ENDS
specification/standard_data96906-MS51534 GOVERNMENT STANDARD
furnished_items_and_quantity1 TUBE COUPLING NUT W/SLEEVE
NSN4730-01-030-5207
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51534A · 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 OVERALL LENGTH: 1.030 INCHES IN
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
CONNECTION STYLE: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES FIRST END IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 2, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SEAT ANGLE: 37.0 DEGREES ALL ENDS
THREAD CLASS: 2A ALL ENDS A
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH1.030 INCHES IN
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES FIRST END IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 2, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SEAT ANGLE37.0 DEGREES ALL ENDS
THREAD CLASS2A ALL ENDS A
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE
MATERIALSTEEL OVERALL
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
A10-4Interchangeable
interchangeable cross-reference
interchangeable
SAM210PC6Interchangeable
interchangeable cross-reference
interchangeable
A-A-59282Interchangeable
interchangeable cross-reference
interchangeable
0C265Interchangeable
interchangeable cross-reference
interchangeable
A104-3-4Interchangeable
interchangeable cross-reference
interchangeable
HDX-00015Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51534A?
MS51534A is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS51534A?
There are 23 known substitutes for MS51534A: A10-4, SAM210PC6, A-A-59282 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51534A?
MS51534A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-030-5207. This indicates validated use in U.S. government and defense supply chains.
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