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PartsTable / COMPONENT / 3254-6 ITEM 66
3254-6 ITEM 66 ✓ 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 CUP,GREASE is a the manufacturer industrial component. Key specifications include height: 1.875 INCHES NOMINAL IN, material: STEEL OVERALL, grease_capacity: 0.500 OUNCES OZ, style_designator: STRAIGHT, CAP FEED, surface_treatment: CADMIUM OR ZINC OVERALL, assembly_clearance_radius: 0.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-061-7306, 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
3254-6 ITEM 66
NSN: 4730-00-061-7306
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
height1.875 INCHES NOMINAL IN
materialSTEEL OVERALL
grease_capacity0.500 OUNCES OZ
style_designatorSTRAIGHT, CAP FEED
surface_treatmentCADMIUM OR ZINC OVERALL
assembly_clearance_radius0.625 INCHES NOMINAL IN
NSN4730-00-061-7306
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3254-6 ITEM 66 · 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
•
GREASE CAPACITY: 0.500 OUNCES OZ
•
ASSEMBLY CLEARANCE RADIUS: 0.625 INCHES NOMINAL IN
•
HEIGHT: 1.875 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT, CAP FEED
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
GREASE CAPACITY0.500 OUNCES OZ
ASSEMBLY CLEARANCE RADIUS0.625 INCHES NOMINAL IN
HEIGHT1.875 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT, CAP FEED
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
TCR105-MInterchangeable
interchangeable cross-reference
interchangeable
32.546Interchangeable
interchangeable cross-reference
interchangeable
AC-66Interchangeable
interchangeable cross-reference
interchangeable
R5111MNInterchangeable
interchangeable cross-reference
interchangeable
XR5111NInterchangeable
interchangeable cross-reference
interchangeable
MS25036-113Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3254-6 ITEM 66?
3254-6 ITEM 66 is a CUP,GREASE.
What parts can replace 3254-6 ITEM 66?
There are 27 known substitutes for 3254-6 ITEM 66: TCR105-M, 32.546, AC-66 and 24 more. Substitute compatibility should be verified for your specific system.
Is 3254-6 ITEM 66 still available?
3254-6 ITEM 66 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026