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Technical Data Sheet
PartsTable / COMPONENT / MS39158-1
MS39158-1 ✓ 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,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) SECOND END, operating_pressure: 2800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-9938, 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
MS39158-1
NSN: 4730-00-288-9938
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
seat_angle45.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
operating_pressure2800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.312 INCHES FIRST END IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length0.910 INCHES IN
end_item_identification4910-01-016-2262
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorNPTF SECOND END
NSN4730-00-288-9938
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS39158-1 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,COMP CA360 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPECIFICATION/STANDARD DATA: 81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81349-MIL-F-15049 GOVERNMENT SPECIFICATION
•
NOMINAL THREAD SIZE: 0.312 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.125 INCHES FIRST END IN
•
NONDEFINITIVE SPEC/STD DATA: 1A FIGURE A
•
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
THREAD SERIES DESIGNATOR: UNF FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP CA360 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81349-MIL-F-15049 GOVERNMENT SPECIFICATION
NOMINAL THREAD SIZE0.312 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.125 INCHES FIRST END IN
NONDEFINITIVE SPEC/STD DATA1A FIGURE A
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
END ITEM IDENTIFICATION4910-01-016-2262
THREAD SERIES DESIGNATORUNF FIRST END
THREAD CLASS2A FIRST END A
CONNECTION STYLEPLAIN (PIPE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
5323536Interchangeable
interchangeable cross-reference
interchangeable
25794Interchangeable
interchangeable cross-reference
interchangeable
11735Interchangeable
interchangeable cross-reference
interchangeable
83SPF1940Interchangeable
Same NIIN cross-reference
interchangeable
48-F-02X02Interchangeable
Same NIIN cross-reference
interchangeable
X1086T87Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS39158-1?
MS39158-1 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace MS39158-1?
There are 11 known substitutes for MS39158-1: 5323536, 25794, 11735 and 8 more. Substitute compatibility should be verified for your specific system.
Is MS39158-1 still available?
MS39158-1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026