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BD1784 ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 1.156 INCHES NOMINAL IN, overall_length: 2.437 INCHES NOMINAL IN, connection_type: THREADED INTERNAL HOSE FIRST FLUID END CONNECTION, furnished_items: GASKET, connection_style: GASKET SEAL ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-048-9777, 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
BD1784
NSN: 4730-01-048-9777
FSC: 4730
CAGE: 62555 — VACU-BLAST CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length1.156 INCHES NOMINAL IN
overall_length2.437 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL HOSE FIRST FLUID END CONNECTION
furnished_itemsGASKET
connection_styleGASKET SEAL ALL ENDS
special_featuresFOUR 5/32 IN. DIA THRU HOLES FOR WOOD SCREWS LOCATED 5/8 IN. FROM FLUID CONNECTION END IN
style_designatorMALE COUPLING HALF
nominal_thread_size1.250 INCHES ALL ENDS IN
quick_disconnect_methodTWO LUG UNIVERSAL ALL ENDS
thread_series_designatorNPSH ALL ENDS
NSN4730-01-048-9777
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: BD1784 · 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: ALUMINUM ALLOY BODY
•
QUICK DISCONNECT METHOD: TWO LUG UNIVERSAL ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
CONNECTION TYPE: THREADED INTERNAL HOSE FIRST FLUID END CONNECTION
•
FURNISHED ITEMS: GASKET
•
LEG LENGTH: 1.156 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: NPSH ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY BODY
QUICK DISCONNECT METHODTWO LUG UNIVERSAL ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.437 INCHES NOMINAL IN
CONNECTION TYPETHREADED INTERNAL HOSE FIRST FLUID END CONNECTION
FURNISHED ITEMSGASKET
LEG LENGTH1.156 INCHES NOMINAL IN
THREAD SERIES DESIGNATORNPSH ALL ENDS
NOMINAL THREAD SIZE1.250 INCHES ALL ENDS IN
CONNECTION STYLEGASKET SEAL ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1794Interchangeable
interchangeable cross-reference
interchangeable
87-0690Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-95 TY2CL5Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-95Interchangeable
interchangeable cross-reference
interchangeable
179Interchangeable
interchangeable cross-reference
interchangeable
900100-22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BD1784?
BD1784 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace BD1784?
There are 20 known substitutes for BD1784: 1794, 87-0690, GGG-C-95 TY2CL5 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BD1784?
BD1784 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-048-9777. 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