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D1784 ✓ 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 BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, valve_size: 1.500 INCHES IN, bonnet_type: INSIDE SCREW, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: STRAIGHT THRU FLANGED ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-476-7155, 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
D1784
NSN: 4730-00-476-7155
FSC: 4730
CAGE: 81346 — AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
valve_size1.500 INCHES IN
bonnet_typeINSIDE SCREW
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorSTRAIGHT THRU FLANGED ENDS
nominal_thickness1.250 INCHES ALL ENDS IN
bolt_hole_quantity4 ALL ENDS
flange_face_designRAISED STRAIGHT ALL ENDS
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
fsc_application_dataNON EQUIPMENT RELATED SHIPALTS
NSN4730-00-476-7155
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: D1784 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
0021120-012Interchangeable
interchangeable cross-reference
interchangeable
8304Interchangeable
interchangeable cross-reference
interchangeable
801-012Interchangeable
interchangeable cross-reference
interchangeable
13226E8419-1Interchangeable
interchangeable cross-reference
interchangeable
05001012Interchangeable
interchangeable cross-reference
interchangeable
SHIPSF2467Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D1784?
D1784 is a BEARING,WASHER,THRUST.
What parts can replace D1784?
There are 31 known substitutes for D1784: 0021120-012, 8304, 801-012 and 28 more. Substitute compatibility should be verified for your specific system.
Is D1784 still available?
D1784 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026