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Technical Data Sheet
PartsTable / COMPONENT / MS27769C4
MS27769C4 ✓ 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 BOSS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, body_type: SOLID, head_type: SOLID, drive_end_style: RECESSED HEXAGON, connection_style: PLAIN, thread_direction: RIGHT-HAND EXTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-188-3506, 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
MS27769C4
NSN: 4730-00-188-3506
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
body_typeSOLID
head_typeSOLID
drive_end_styleRECESSED HEXAGON
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.375 INCHES EXTERNAL IN
end_item_identificationAIRCRAFT APPLICATION
thread_series_designatorANPT EXTERNAL
nominal_pipe_size_for_which_designed0.375 INCHES IN
NSN4730-00-188-3506
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS27769C4 · 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
•
BODY TYPE: SOLID
•
NOMINAL THREAD SIZE: 0.375 INCHES EXTERNAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
CONNECTION STYLE: PLAIN
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.375 INCHES IN
•
HEAD TYPE: SOLID
•
THREAD SERIES DESIGNATOR: ANPT EXTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
BODY TYPESOLID
END ITEM IDENTIFICATIONAIRCRAFT APPLICATION
NOMINAL THREAD SIZE0.375 INCHES EXTERNAL IN
SURFACE TREATMENTCADMIUM OVERALL
CONNECTION STYLEPLAIN
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.375 INCHES IN
HEAD TYPESOLID
THREAD SERIES DESIGNATORANPT EXTERNAL
MATERIALCOPPER ALLOY OVERALL
DRIVE END STYLERECESSED HEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
272-1057P4Interchangeable
interchangeable cross-reference
interchangeable
U400314-1DInterchangeable
interchangeable cross-reference
interchangeable
P6Interchangeable
interchangeable cross-reference
interchangeable
AS4842Interchangeable
interchangeable cross-reference
interchangeable
AN932M4Interchangeable
interchangeable cross-reference
interchangeable
MS27769Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27769C4?
MS27769C4 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace MS27769C4?
There are 16 known substitutes for MS27769C4: 272-1057P4, U400314-1D, P6 and 13 more. Substitute compatibility should be verified for your specific system.
Is MS27769C4 still available?
MS27769C4 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