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AN817-12 ✓ 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,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: TUBE COUPLING, nut_height: 1.656 INCHES NOMINAL IN, seat_angle: 33.00 DEGREES NOMINAL, thread_class: 3B, thread_series: UN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-7261, 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
AN817-12
NSN: 4730-00-203-7261
FSC: 4730
CAGE: 71563 — COLLINS ENGINEERING CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleTUBE COUPLING
nut_height1.656 INCHES NOMINAL IN
seat_angle33.00 DEGREES NOMINAL
thread_class3B
thread_seriesUN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats1.250 INCHES NOMINAL IN
nominal_thread_size1.062 INCHES IN
smallest_inside_diameter0.756 INCHES NOMINAL IN
thread_quantity_per_inch12
NSN4730-00-203-7261
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN817-12 · 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
•
MATERIAL: STEEL OVERALL
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.750 INCHES IN
•
SEAT ANGLE: 33.00 DEGREES NOMINAL
•
WIDTH ACROSS FLATS: 1.250 INCHES NOMINAL IN
•
SMALLEST INSIDE DIAMETER: 0.756 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 12
•
NOMINAL THREAD SIZE: 1.062 INCHES IN
•
THREAD SERIES: UN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
NOMINAL TUBE OUTSIDE DIAMETER0.750 INCHES IN
SEAT ANGLE33.00 DEGREES NOMINAL
WIDTH ACROSS FLATS1.250 INCHES NOMINAL IN
SMALLEST INSIDE DIAMETER0.756 INCHES NOMINAL IN
THREAD QUANTITY PER INCH12
NOMINAL THREAD SIZE1.062 INCHES IN
THREAD SERIESUN
NUT HEIGHT1.656 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AN817-10DInterchangeable
interchangeable cross-reference
interchangeable
AN817-12DInterchangeable
interchangeable cross-reference
interchangeable
AS5206Interchangeable
interchangeable cross-reference
interchangeable
AS4841Interchangeable
interchangeable cross-reference
interchangeable
AS5206-02Interchangeable
interchangeable cross-reference
interchangeable
AS5206J05Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN817-12?
AN817-12 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AN817-12?
There are 11 known substitutes for AN817-12: AN817-10D, AN817-12D, AS5206 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN817-12?
AN817-12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-7261. 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