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N61621 ✓ 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

RING ASSEMBLY,ELECTRICAL CONTACT. Key specifications include width: 0.093 INCHES NOMINAL IN, diameter: 1.812 INCHES NOMINAL IN, overall_length: 5.375 INCHES NOMINAL IN, overall_diameter: 2.625 INCHES NOMINAL IN, special_features: 1 THROUGH 10 ENGRAVED 2 PLACES, special_markings: 1 THROUGH 10 ENGRAVED 2 PLACES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-111-9595, 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
N61621
NSN: 4730-01-111-9595
FSC: 4730
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
width0.093 INCHES NOMINAL IN
diameter1.812 INCHES NOMINAL IN
overall_length5.375 INCHES NOMINAL IN
overall_diameter2.625 INCHES NOMINAL IN
special_features1 THROUGH 10 ENGRAVED 2 PLACES
special_markings1 THROUGH 10 ENGRAVED 2 PLACES
precious_materialSILVER
contact_ring_quantity10
mounting_configurationFOUR NO. 6-32 THD BY 0.375 IN. DEEP MTG HOLES SPACED 90 DEG APART ON 1.250 IN. DIA BOLT CIRCLE IN
end_item_identificationP-3C ORION AIRCRAFT
precious_material_and_weight0.040 SILVER GRAINS, TROY
precious_material_and_locationRING SURFACE SILVER
NSN4730-01-111-9595
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: N61621 · 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 7
1425810Interchangeable
interchangeable cross-reference
interchangeable
16588FXInterchangeable
interchangeable cross-reference
interchangeable
105126AInterchangeable
interchangeable cross-reference
interchangeable
61621Interchangeable
interchangeable cross-reference
interchangeable
61621-53Interchangeable
Same NIIN cross-reference
interchangeable
61621-53L1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N61621?
N61621 is a RING ASSEMBLY,ELECTRICAL CONTACT.
What parts can replace N61621?
There are 7 known substitutes for N61621: 1425810, 16588FX, 105126A and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N61621?
N61621 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-111-9595. 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