PartsTable
Technical Data Sheet
MS28761-4 ✓ 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 HOSE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1137 NUT, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END, special_features: COLOR OF CADMIUM PLATING IS BLACK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-541-6607, 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
MS28761-4
NSN: 4730-00-541-6607
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1137 NUT
seat_angle37.0 DEGREES FIRST END
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
special_featuresCOLOR OF CADMIUM PLATING IS BLACK
surface_treatmentCADMIUM NIPPLE
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.438 INCHES FIRST END IN
nominal_overall_length2.491 INCHES IN
end_item_identificationGRUMMAN A10 AIRCRAFT; 45N AIRCRAFT, PROWLER EA-6B
thread_quantity_per_inch16 FIRST END
NSN4730-00-541-6607
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS28761-4 · 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 OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: STEEL COMP 1137 NIPPLE
SEAT ANGLE: 37.0 DEGREES FIRST END
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE NIPPLE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL COMP 1137 NIPPLE
SEAT ANGLE37.0 DEGREES FIRST END
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
SPECIAL FEATURESCOLOR OF CADMIUM PLATING IS BLACK
MATERIALSTEEL COMP 1137 NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE NIPPLE
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MIL-F-8789Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-8789Interchangeable
interchangeable cross-reference
interchangeable
MS28780-8Interchangeable
interchangeable cross-reference
interchangeable
R11417Interchangeable
interchangeable cross-reference
interchangeable
3R2169Interchangeable
interchangeable cross-reference
interchangeable
3-424Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28761-4?
MS28761-4 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace MS28761-4?
There are 19 known substitutes for MS28761-4: MIL-F-8789, MIL-DTL-8789, MS28780-8 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28761-4?
MS28761-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-541-6607. This indicates validated use in U.S. government and defense supply chains.
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