NSN 5331-01-439-2618 · NIIN 014392618 · Part number 9X7743
Caterpillar Inc Div Caterpillar Defense · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 11083
Government record, cited
NSN 5331-01-439-2618 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-439-2618. Manufacturer of record part number: 9X7743.
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 5331-01-439-2618
NIIN: 014392618
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 9X7743
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The O-Ring, cataloged under National Stock Number 5331-01-439-2618, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
C/1Advisory reference — outside the item-of-supply concept
Zf Industrieantriebe Witten Gmbh
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 5331-01-439-2618?
NSN 5331-01-439-2618 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 5331-01-439-2618?
NSN 5331-01-439-2618 has 2 manufacturer part numbers on file: 9X7743 (Caterpillar Inc Div Caterpillar Defense), 9X-7743 (Finning (uk) Ltd).
What are the specifications of 9X7743?
Key specifications for 9X7743: End Item Identification: 950F WHEEL LOADER, CATERPILLAR INC. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-439-2618 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.