PartsTable
Technical Data Sheet
PartsTable / O-RING / A21110
A21110 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, shell_type: SOLID, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, overall_width: 2.031 INCHES MAXIMUM IN, overall_height: 2.031 INCHES MAXIMUM IN, overall_length: 1.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-1081, 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
A21110
NSN: 5331-00-166-1081
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
shell_typeSOLID
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
overall_width2.031 INCHES MAXIMUM IN
overall_height2.031 INCHES MAXIMUM IN
overall_length1.375 INCHES NOMINAL IN
shell_materialALUMINUM ALLOY
hardness_rating85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
contact_materialCOPPER ALLOY SINGLE MATING END ALL CONTACT GROUPINGS
outside_diameter0.430 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN
precious_materialSILVER
mating_end_quantity1
NSN5331-00-166-1081
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A21110 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE DIAMETER: 0.430 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN
•
HARDNESS RATING: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.430 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN
HARDNESS RATING85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
MATERIALRUBBER FLUOROCARBON CLASS FPM
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
S204-6266Interchangeable
interchangeable cross-reference
interchangeable
6439Interchangeable
interchangeable cross-reference
interchangeable
16-440004Interchangeable
interchangeable cross-reference
interchangeable
B568-011CPInterchangeable
interchangeable cross-reference
interchangeable
AS568-011MILG23652TY2Interchangeable
interchangeable cross-reference
interchangeable
AS568-011MILG23652TY2CPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy A21110?
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 A21110?
A21110 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace A21110?
There are 28 known substitutes for A21110: S204-6266, 6439, 16-440004 and 25 more. Substitute compatibility should be verified for your specific system.
Is A21110 still available?
A21110 is currently cancelled.
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 — A21110

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