PartsTable
Technical Data Sheet
F5509A ✓ 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: STEEL COMP 1335 OVERALL, body_type: CORED, head_type: SOLID, flow_angle: 90.0 DEGREES, leg_length: 1.781 INCHES NOMINAL ALL ENDS IN, seat_angle: 37.0 DEGREES ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-2754, 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
F5509A
NSN: 4730-00-278-2754
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1335 OVERALL
body_typeCORED
head_typeSOLID
flow_angle90.0 DEGREES
leg_length1.781 INCHES NOMINAL ALL ENDS IN
seat_angle37.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
drive_end_styleHEXAGON
connection_stylePLAIN
special_featuresSTD WT
thread_directionRIGHT-HAND EXTERNAL
NSN4730-00-278-2754
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: F5509A · 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 STYLE: GASKET SEAL (BOSS) SECOND END
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES THIRD END IN
SEAT ANGLE: 37.0 DEGREES THIRD END
LEG LENGTH: 1.156 INCHES NOMINAL SECOND END IN
THREAD CLASS: 3A FIRST END BULKHEAD A
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEGASKET SEAL (BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES THIRD END IN
SEAT ANGLE37.0 DEGREES THIRD END
CONNECTION TYPETHREADED INTERNAL BOSS SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
LEG LENGTH1.156 INCHES NOMINAL SECOND END IN
THREAD CLASS3A FIRST END BULKHEAD A
NOMINAL THREAD SIZE0.875 INCHES FIRST END BULKHEAD IN
LEG LENGTH1.625 INCHES NOMINAL THIRD END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
AS5195Interchangeable
interchangeable cross-reference
interchangeable
AS5195R0602Interchangeable
interchangeable cross-reference
interchangeable
AN824-16DInterchangeable
interchangeable cross-reference
interchangeable
F5509AInterchangeable
interchangeable cross-reference
interchangeable
C1359X6Interchangeable
interchangeable cross-reference
interchangeable
AN933-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F5509A?
F5509A is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace F5509A?
There are 10 known substitutes for F5509A: AS5195, AS5195R0602, AN824-16D and 7 more. Substitute compatibility should be verified for your specific system.
Is F5509A still available?
F5509A is currently cancelled.
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