NSN 5331-01-633-1263 · NIIN 016331263 · Part number 238-5079
Caterpillar Inc Div Caterpillar Defense · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 11083
Government record, cited
NSN 5331-01-633-1263 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-633-1263. Manufacturer of record part number: 238-5079.
Cross-Sectional Height: 1.63 MILLIMETERS NOMINAL MM
Outside Diameter: 10.91 MILLIMETERS NOMINAL MM
Center Hole Diameter: 7.65 MILLIMETERS NOMINAL MM
Material: RUBBER
2 manufacturer part numbers on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 5331-01-633-1263
NIIN: 016331263
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 238-5079
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The O-Ring, cataloged under National Stock Number 5331-01-633-1263, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 4 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. Current acquisition status: Active.
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 5331-01-633-1263?
NSN 5331-01-633-1263 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-633-1263?
NSN 5331-01-633-1263 has 2 manufacturer part numbers on file: 238-5079 (Caterpillar Inc Div Caterpillar Defense), 4185874 (Oshkosh Defense Llc).
What are the specifications of 238-5079?
Key specifications for 238-5079: Cross-Sectional Height: 1.63 MILLIMETERS NOMINAL MM; Outside Diameter: 10.91 MILLIMETERS NOMINAL MM; Special Features: MATERIAL: FLUOROCARBON FKM; OEM STATES ITEM'S SHELF LIFE IS INDEFINITE; Center Hole Diameter: 7.65 MILLIMETERS NOMINAL MM. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-633-1263 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.