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AN783-12D — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AN783-12D: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, leg_length: 1.344 INCHES NOMINAL THIRD END IN, seat_angle: 37.0 DEGREES SECOND END, thread_class: 3A FIRST END BULKHEAD A, connection_type: THREADED INTERNAL BOSS THIRD END, connection_style: GASKET SEAL (BOSS) THIRD END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-7272, 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
AN783-12D
NSN: 4730-00-203-7272
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
leg_length1.344 INCHES NOMINAL THIRD END IN
seat_angle37.0 DEGREES SECOND END
thread_class3A FIRST END BULKHEAD A
connection_typeTHREADED INTERNAL BOSS THIRD END
connection_styleGASKET SEAL (BOSS) THIRD END
surface_treatmentANODIZE OVERALL
nominal_thread_size1.062 INCHES ALL ENDS IN
thread_quantity_per_inch12 FIRST END BULKHEAD
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
specification/standard_data88044-AN783 GOVERNMENT STANDARD
nominal_outside_diameter_tube_accommodated0.750 INCHES FIRST END IN
NSN4730-00-203-7272
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN783-12D · 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: FLARED (TUBE) SECOND END
•
CONNECTION TYPE: THREADED INTERNAL BOSS THIRD END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) SECOND END
CONNECTION STYLEGASKET SEAL (BOSS) THIRD END
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS THIRD END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES FIRST END IN
LEG LENGTH2.625 INCHES NOMINAL FIRST END IN
LEG LENGTH1.344 INCHES NOMINAL THIRD END IN
SUBSTITUTES & CROSS-REFERENCES 6
AS1031Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS1031D121212Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS4875/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
417D4Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS4875/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AN783D12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN783-12D?
AN783-12D is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AN783-12D?
There are 6 known substitutes for AN783-12D: AS1031, AS1031D121212, AS4875/1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN783-12D?
AN783-12D is cataloged in the U.S. Government catalog under NSN 4730-00-203-7272. This indicates validated use in U.S. government and defense supply chains.
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