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PartsTable / COMPONENT / E-3990 ITEM 76
E-3990 ITEM 76 ✓ 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,OIL,LUBRICATING is a the manufacturer industrial component. Key specifications include height: 0.470 INCHES NOMINAL IN, material: STEEL OVERALL, shank_length: 0.220 INCHES NOMINAL IN, shank_diameter: 0.190 INCHES NOMINAL IN, style_designator: STRAIGHT, HINGED CAP, W/SHOULDER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-379-3744, 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
E-3990 ITEM 76
NSN: 4730-01-379-3744
FSC: 4730
CAGE: 97928 — HUCK INTL INC (USA)
SPECIFICATIONS
height0.470 INCHES NOMINAL IN
materialSTEEL OVERALL
shank_length0.220 INCHES NOMINAL IN
shank_diameter0.190 INCHES NOMINAL IN
style_designatorSTRAIGHT, HINGED CAP, W/SHOULDER
NSN4730-01-379-3744
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: E-3990 ITEM 76 · 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
•
HEIGHT: 0.470 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT, HINGED CAP, W/SHOULDER
•
SHANK DIAMETER: 0.190 INCHES NOMINAL IN
•
SHANK LENGTH: 0.220 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT0.470 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT, HINGED CAP, W/SHOULDER
SHANK DIAMETER0.190 INCHES NOMINAL IN
SHANK LENGTH0.220 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
00300Interchangeable
interchangeable cross-reference
interchangeable
20-19Interchangeable
interchangeable cross-reference
interchangeable
00300GInterchangeable
interchangeable cross-reference
interchangeable
MODEL 3Interchangeable
interchangeable cross-reference
interchangeable
DRASHInterchangeable
interchangeable cross-reference
interchangeable
96-0695Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E-3990 ITEM 76?
E-3990 ITEM 76 is a CUP,OIL,LUBRICATING.
What parts can replace E-3990 ITEM 76?
There are 7 known substitutes for E-3990 ITEM 76: 00300, 20-19, 00300G and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E-3990 ITEM 76?
E-3990 ITEM 76 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-379-3744. 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