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2189786 ✓ 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 PACKING NUT is a the manufacturer industrial component. Key specifications include phase: THREE, shape: RECTANGULAR, material: STEEL CORROSION RESISTING BODY, body_style: EDISON BASE, body_length: 4.125 INCHES NOMINAL IN, current_type: AC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-700-0612, 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
2189786
NSN: 4730-00-700-0612
FSC: 4730
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
phaseTHREE
shapeRECTANGULAR
materialSTEEL CORROSION RESISTING BODY
body_styleEDISON BASE
body_length4.125 INCHES NOMINAL IN
current_typeAC
gross_weight2.0 SHIPPING CONTAINER POUNDS AND 47520.0 PALLET POUNDS
overall_width1.000 INCHES NOMINAL IN
pump_quantity1
system_designNONCORROSIVE
terminal_typeWIRE LEAD
thread_length0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
NSN4730-00-700-0612
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2189786 · 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 13
12601Interchangeable
interchangeable cross-reference
interchangeable
12601-000Interchangeable
interchangeable cross-reference
interchangeable
629655-2Interchangeable
interchangeable cross-reference
interchangeable
40-036580-01Interchangeable
interchangeable cross-reference
interchangeable
68304000601Interchangeable
interchangeable cross-reference
interchangeable
40183Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2189786?
2189786 is a PACKING NUT.
What parts can replace 2189786?
There are 13 known substitutes for 2189786: 12601, 12601-000, 629655-2 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2189786?
2189786 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-700-0612. 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