NSN 5331-00-542-0661 · NIIN 005420661 · Part number MR2-109
Minnesota Rubber Co · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 07322
Government record, cited
NSN 5331-00-542-0661 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-542-0661. Manufacturer of record part number: MR2-109.
The O-Ring, cataloged under National Stock Number 5331-00-542-0661, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Minnesota Rubber Co. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Bae Systems Information and Electronic Systems Integration Inc. (USA)
Reference documents
Reference
Meaning
ES1422-9E
5/9Secondary reference
Drs Sustainment Systems, Inc.
No interchangeability data on file.
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
O-RING
5331-00-001-1979
O-RING
5331-00-001-3904
O-RING
5331-00-001-3905
O-RING
5331-00-001-3906
O-RING
5331-00-001-3908
O-RING
5331-00-001-3923
O-RING
5331-00-001-3924
O-RING
Frequently Asked Questions
What is NSN 5331-00-542-0661?
NSN 5331-00-542-0661 is a O-Ring, manufactured by Minnesota Rubber Co, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-542-0661?
NSN 5331-00-542-0661 has 2 manufacturer part numbers on file: MR2-109 (Minnesota Rubber Co), 38012850 (Bae Systems Information and Electronic Systems Integration Inc.).
What are the specifications of MR2-109?
Key specifications for MR2-109: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Material: RUBBER SILICONE CLASS Q. 2 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-542-0661 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.