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HG861 ✓ 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: COPPER ALLOY BODY, leg_length: 1.250 INCHES NOMINAL IN, overall_length: 3.500 INCHES NOMINAL IN, connection_style: GASKET SEAL ALL ENDS, style_designator: MALE COUPLING HALF, nominal_thread_size: 3.000 INCHES ALL ENDS 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 4730-00-034-7752, 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
HG861
NSN: 4730-00-034-7752
FSC: 4730
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
leg_length1.250 INCHES NOMINAL IN
overall_length3.500 INCHES NOMINAL IN
connection_styleGASKET SEAL ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size3.000 INCHES ALL ENDS IN
thread_quantity_per_inch8 ALL ENDS
thread_series_designatorNH ALL ENDS
NSN4730-00-034-7752
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: HG861 · 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
•
LEG LENGTH: 1.250 INCHES NOMINAL IN
•
CONNECTION STYLE: GASKET SEAL ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
THREAD SERIES DESIGNATOR: NH ALL ENDS
•
THREAD QUANTITY PER INCH: 8 ALL ENDS
•
MATERIAL: COPPER ALLOY BODY
•
NOMINAL THREAD SIZE: 3.000 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
LEG LENGTH1.250 INCHES NOMINAL IN
CONNECTION STYLEGASKET SEAL ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
THREAD SERIES DESIGNATORNH ALL ENDS
THREAD QUANTITY PER INCH8 ALL ENDS
MATERIALCOPPER ALLOY BODY
NOMINAL THREAD SIZE3.000 INCHES ALL ENDS IN
OVERALL LENGTH3.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
E3Interchangeable
interchangeable cross-reference
interchangeable
OAFInterchangeable
interchangeable cross-reference
interchangeable
0AFInterchangeable
interchangeable cross-reference
interchangeable
D3Interchangeable
interchangeable cross-reference
interchangeable
D3FS160Interchangeable
interchangeable cross-reference
interchangeable
AN207D3ANG25Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HG861?
HG861 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace HG861?
There are 15 known substitutes for HG861: E3, OAF, 0AF and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HG861?
HG861 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-034-7752. 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