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AN778-6 — CONNECTOR,MULTIPLE,FLUID PRESSUR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AN778-6: CONNECTOR,MULTIPLE,FLUID PRESSUR.

CONNECTOR,MULTIPLE,FLUID PRESSUR. Key specifications include thickness: 0.875 INCHES NOMINAL IN, thread_size: 9/16 IN.-18 SINGLE CONNECTION IN, thread_class: 3A SINGLE CONNECTION A, overall_width: 1.000 INCHES NOMINAL IN, overall_length: 2.062 INCHES MINIMUM IN, furnished_items: SEAT SINGLE CONNECTION. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-278-5816, 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
AN778-6
NSN: 4730-00-278-5816
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14397 — FABER ENTERPRISES, INC. DIV FABER ENTERPRISE INC (USA)
SPECIFICATIONS
thickness0.875 INCHES NOMINAL IN
thread_size9/16 IN.-18 SINGLE CONNECTION IN
thread_class3A SINGLE CONNECTION A
overall_width1.000 INCHES NOMINAL IN
overall_length2.062 INCHES MINIMUM IN
furnished_itemsSEAT SINGLE CONNECTION
connection_styleFLARED SINGLE CONNECTION
style_designator1 FLUID CONNECTION
thread_directionRIGHT-HAND SINGLE CONNECTION
thread_provisionTHREADED SINGLE CONNECTION
seat_angle_in_deg37.0 SINGLE CONNECTION
surface_treatmentCADMIUM AND CHROMATE
NSN4730-00-278-5816
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN778-6 · 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
•
DEG BETWEEN OUTLETS: 45.0
•
BOLT HOLE FLUID PASSAGE: PROVIDED
•
SEAT ANGLE IN DEG: 37.0 SINGLE CONNECTION
•
THREAD PROVISION: THREADED SINGLE CONNECTION
•
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED: 3/8 IN. OD TUBE IN
•
CONNECTION STYLE: FLARED SINGLE CONNECTION
•
BOLT HOLE FLATS SERRATIONS: PROVIDED
•
STYLE DESIGNATOR: 1 FLUID CONNECTION
TECHNICAL CHARACTERISTICS
DEG BETWEEN OUTLETS45.0
BOLT HOLE FLUID PASSAGEPROVIDED
SEAT ANGLE IN DEG37.0 SINGLE CONNECTION
THREAD PROVISIONTHREADED SINGLE CONNECTION
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED3/8 IN. OD TUBE IN
CONNECTION STYLEFLARED SINGLE CONNECTION
BOLT HOLE FLATS SERRATIONSPROVIDED
STYLE DESIGNATOR1 FLUID CONNECTION
FLUID CONNECTION QUANTITY1 SINGLE CONNECTION
BOLT HOLE DIAMETER0.563 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
AS4875/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILF5509AAMEND6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-F-5509Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN778-6?
AN778-6 is a CONNECTOR,MULTIPLE,FLUID PRESSUR.
What parts can replace AN778-6?
There are 3 known substitutes for AN778-6: AS4875/1, MILF5509AAMEND6, MIL-F-5509. Substitute compatibility should be verified for your specific system.
What is the NSN for AN778-6?
AN778-6 is cataloged in the U.S. Government catalog under NSN 4730-00-278-5816. This indicates validated use in U.S. government and defense supply chains.
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