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A2016R2-31 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A2016R2-31: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, cross-sectional_height: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-291-9218, 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
A2016R2-31
NSN: 5331-00-291-9218
FSC: 5331 — O-ring
CAGE: 09032 — TATE ANDALE, LLC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
cross-sectional_height0.312 INCHES NOMINAL IN
NSN5331-00-291-9218
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A2016R2-31 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
•
CROSS-SECTIONAL HEIGHT: 0.312 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.312 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 7
5330-223-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
PK18P13G4057R5Reference document
Same NSN cross-reference
Reference document — Secondary reference
WW8453351PC4AReference document
Same NSN cross-reference
Reference document — Secondary reference
WW8440676PC4AReference document
Same NSN cross-reference
Reference document — Secondary reference
DD692S6100-153PC4AReference document
Same NSN cross-reference
Reference document — Secondary reference
A041S6100-960328PC4AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A2016R2-31?
A2016R2-31 is a O-RING.
What parts can replace A2016R2-31?
There are 7 known substitutes for A2016R2-31: 5330-223-18, PK18P13G4057R5, WW8453351PC4A and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A2016R2-31?
A2016R2-31 is cataloged in the U.S. Government catalog under NSN 5331-00-291-9218. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.