NSN 5331-01-432-4944 · NIIN 014324944 · Part number 6990481-4
Naval Sea Systems Command · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 53711
Government record, cited
NSN 5331-01-432-4944 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-432-4944. Manufacturer of record part number: 6990481-4.
Also searched as5331-01-432-4944 ·
5331014324944 ·
NIIN 014324944 ·
01-432-4944 ·
FSC 5331 O-ring · CAGE 53711 · 6990481-4
Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Center Hole Diameter: 15.880 INCHES MINIMUM AND 16.030 INCHES MAXIMUM IN
Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM
2 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 5331-01-432-4944
NIIN: 014324944
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 6990481-4
Manufacturer: Naval Sea Systems Command
General Description
The O-Ring, cataloged under National Stock Number 5331-01-432-4944, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
5331-01-432-4944
Primary Part Number
6990481-4
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Cross-Sectional Height
0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Center Hole Diameter
15.880 INCHES MINIMUM AND 16.030 INCHES MAXIMUM IN
Parker Hannifin Corporation Div Composite Sealing Systems Division
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 5331-01-432-4944?
NSN 5331-01-432-4944 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-432-4944?
NSN 5331-01-432-4944 has 2 manufacturer part numbers on file: 6990481-4 (Naval Sea Systems Command), 6990481-4 (Parker-Hannifin Corp Div O-Ring Division).
What are the specifications of 6990481-4?
Key specifications for 6990481-4: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Center Hole Diameter: 15.880 INCHES MINIMUM AND 16.030 INCHES MAXIMUM IN; Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-432-4944 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.