PartsTable
Technical Data Sheet
PartsTable / COMPONENT / SYB3964
SYB3964 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include end_item_identification: 1940-01-262-3993, inside_surface_condition: SMOOTH, cross-sectional_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-365-7911, 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
SYB3964
NSN: 4720-01-365-7911
FSC: 4720
CAGE: F3015 — NAVAL GROUP SITE DE LORIENT (FRA)
SPECIFICATIONS
end_item_identification1940-01-262-3993
inside_surface_conditionSMOOTH
cross-sectional_shape_styleROUND
NSN4720-01-365-7911
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: SYB3964 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INSIDE SURFACE CONDITION: SMOOTH
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE SURFACE CONDITIONSMOOTH
END ITEM IDENTIFICATION1940-01-262-3993
CROSS-SECTIONAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2457Interchangeable
interchangeable cross-reference
interchangeable
2499Interchangeable
interchangeable cross-reference
interchangeable
4040875Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
HT125Interchangeable
interchangeable cross-reference
interchangeable
A-2499Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy SYB3964?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is SYB3964?
SYB3964 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace SYB3964?
There are 8 known substitutes for SYB3964: 2457, 2499, 4040875 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SYB3964?
SYB3964 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-365-7911. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — SYB3964

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026