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Technical Data Sheet
PartsTable / COMPONENT / AN775-8D
AN775-8D ✓ 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

CONNECTOR,MULTIPLE,FLUID PRESSUR. Key specifications include material: ALUMINUM, body_style: PLAIN, overall_length: 1.938 INCHES NOMINAL IN, special_features: WEAPON SYSTEM ESSENTIAL, surface_treatment: ANODIZE, width_across_flats: 1.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-0373, 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
AN775-8D
NSN: 4730-00-278-0373
FSC: 4730
CAGE: 71563 — COLLINS ENGINEERING CORP (USA)
SPECIFICATIONS
materialALUMINUM
body_stylePLAIN
overall_length1.938 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL
surface_treatmentANODIZE
width_across_flats1.000 INCHES NOMINAL IN
first_end_seat_angle45.0 DEGREES NOMINAL
concentric_hole_depth1.656 INCHES NOMINAL IN
first_end_thread_class3A A
end_item_identificationAIRCRAFT, INTRUDER A-6E
first_end_thread_length0.562 INCHES NOMINAL IN
wrenching_feature_styleHEXAGON
NSN4730-00-278-0373
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN775-8D · 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
•
FIRST DIAMETER FROM WRENCHING FEATURE: 0.748 INCHES NOMINAL IN
•
FIRST END CONNECTION TYPE: THREADED EXTERNAL TUBE
•
WIDTH ACROSS FLATS: 1.000 INCHES NOMINAL IN
•
DISTANCE FROM FIRST RADIAL HOLE CENTER TO END OF BOLT: 1.094 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
FIRST END STYLE DESIGNATOR: FLARED
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 1.125 INCHES NOMINAL IN
•
FIRST END SEAT ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
FIRST DIAMETER FROM WRENCHING FEATURE0.748 INCHES NOMINAL IN
FIRST END CONNECTION TYPETHREADED EXTERNAL TUBE
WIDTH ACROSS FLATS1.000 INCHES NOMINAL IN
DISTANCE FROM FIRST RADIAL HOLE CENTER TO END OF BOLT1.094 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
FIRST END STYLE DESIGNATORFLARED
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER1.125 INCHES NOMINAL IN
FIRST END SEAT ANGLE45.0 DEGREES NOMINAL
FIRST RADIAL FLUID HOLE DIAMETER0.312 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
AS4875Interchangeable
interchangeable cross-reference
interchangeable
AS5161Interchangeable
interchangeable cross-reference
interchangeable
AS5161-06Interchangeable
interchangeable cross-reference
interchangeable
4730002740936Interchangeable
interchangeable cross-reference
interchangeable
AN775-4Interchangeable
interchangeable cross-reference
interchangeable
AN775-4DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN775-8D?
AN775-8D is a CONNECTOR,MULTIPLE,FLUID PRESSUR.
What parts can replace AN775-8D?
There are 15 known substitutes for AN775-8D: AS4875, AS5161, AS5161-06 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN775-8D?
AN775-8D is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-0373. 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: July 2026