PartsTable
Technical Data Sheet
PartsTable / COMPONENT / D21231-8
D21231-8 ✓ 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

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include peripheral_diameter: 3.250 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN, center_hole_diameter: 2.830 INCHES MINIMUM AND 2.860 INCHES MAXIMUM IN, cross-sectional_height: 0.062 INCHES NOMINAL IN, cross-sectional_shape_style: OVAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-006-3959, 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
D21231-8
NSN: 5330-01-006-3959
FSC: 5330
CAGE: 27125 — HANNA CORP (USA)
SPECIFICATIONS
peripheral_diameter3.250 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN
center_hole_diameter2.830 INCHES MINIMUM AND 2.860 INCHES MAXIMUM IN
cross-sectional_height0.062 INCHES NOMINAL IN
cross-sectional_shape_styleOVAL
NSN5330-01-006-3959
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D21231-8 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
•
PERIPHERAL DIAMETER: 3.250 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: OVAL
•
CENTER HOLE DIAMETER: 2.830 INCHES MINIMUM AND 2.860 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL DIAMETER3.250 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEOVAL
CENTER HOLE DIAMETER2.830 INCHES MINIMUM AND 2.860 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
451100Interchangeable
interchangeable cross-reference
interchangeable
3100BDEInterchangeable
interchangeable cross-reference
interchangeable
3100EANDInterchangeable
interchangeable cross-reference
interchangeable
TLC4526Interchangeable
interchangeable cross-reference
interchangeable
A91-451100Interchangeable
interchangeable cross-reference
interchangeable
D34962PC2Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy D21231-8?
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 D21231-8?
D21231-8 is a RETAINER,PACKING.
What parts can replace D21231-8?
There are 6 known substitutes for D21231-8: 451100, 3100BDE, 3100EAND and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D21231-8?
D21231-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-006-3959. 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 — D21231-8

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