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AN776-6 — Technical Data Sheet

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— · 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

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: 1.750 INCHES NOMINAL IN, furnished_items: SEAT SINGLE CONNECTION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-00-277-9761, 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
AN776-6
NSN: 4730-00-277-9761
FSC: 4730
CAGE: 17341 — TECH AERO 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_length1.750 INCHES NOMINAL 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_treatmentZINC
NSN4730-00-277-9761
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN776-6 · 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
•
THREAD PROVISION: THREADED SINGLE CONNECTION
•
STYLE DESIGNATOR: 1 FLUID CONNECTION
•
THREAD SIZE: 9/16 IN.-18 SINGLE CONNECTION IN
•
FURNISHED ITEMS: SEAT SINGLE CONNECTION
•
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED: 3/8 IN,OD TUBE IN
•
SPECIFICATION/STANDARD DATA: 88044-AN776-J+81343-AS4875/1 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS
THREAD PROVISIONTHREADED SINGLE CONNECTION
STYLE DESIGNATOR1 FLUID CONNECTION
THREAD SIZE9/16 IN.-18 SINGLE CONNECTION IN
OVERALL WIDTH0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
OVERALL LENGTH1.750 INCHES MINIMUM AND 1.812 INCHES MAXIMUM IN
FURNISHED ITEMSSEAT SINGLE CONNECTION
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED3/8 IN,OD TUBE IN
SPECIFICATION/STANDARD DATA88044-AN776-J+81343-AS4875/1 GOVERNMENT STANDARD
BOLT HOLE FLUID PASSAGEPROVIDED
SEAT ANGLE IN DEG37.0 SINGLE CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
AN776-4JInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS5162J04InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS4875/1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AN776-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS5162InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6026-91016RInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN776-6?
AN776-6 is a CONNECTOR,MULTIPLE,FLUID PRESSUR.
What parts can replace AN776-6?
There are 16 known substitutes for AN776-6: AN776-4J, AS5162J04, AS4875/1 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN776-6?
AN776-6 is cataloged in the Federal Logistics Information System under NSN 4730-00-277-9761. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026