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Technical Data Sheet
PartsTable / COMPONENT / 1G3
1G3 ✓ 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: STEEL BODY, leg_length: 0.500 INCHES NOMINAL IN, overall_length: 1.562 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-882-6692, 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
1G3
NSN: 4730-00-882-6692
FSC: 4730
CAGE: 73992 — TUTHILL CORP HANSEN COUPLING DIV (USA)
SPECIFICATIONS
materialSTEEL BODY
leg_length0.500 INCHES NOMINAL IN
overall_length1.562 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentCADMIUM BODY
nominal_thread_size0.250 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPT ALL ENDS
furnished_items_and_quantity1 SEAL
NSN4730-00-882-6692
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1G3 · 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 TYPE: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
•
LEG LENGTH: 0.500 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
SURFACE TREATMENT: CADMIUM BODY
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
LEG LENGTH0.500 INCHES NOMINAL IN
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
SURFACE TREATMENTCADMIUM BODY
FURNISHED ITEMS AND QUANTITY1 SEAL
CONNECTION STYLEPLAIN ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
2608Interchangeable
interchangeable cross-reference
interchangeable
MIL-I-23264/1Interchangeable
interchangeable cross-reference
interchangeable
K2-608Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751Interchangeable
interchangeable cross-reference
interchangeable
1340Interchangeable
interchangeable cross-reference
interchangeable
150 29Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1G3?
1G3 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 1G3?
There are 22 known substitutes for 1G3: 2608, MIL-I-23264/1, K2-608 and 19 more. Substitute compatibility should be verified for your specific system.
Is 1G3 still available?
1G3 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