NSN 5120-01-289-0635 · NIIN 012890635 · Part number 4S9453
Caterpillar Inc Div Caterpillar Defense · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE 11083
Government record, cited
NSN 5120-01-289-0635 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-289-0635. Manufacturer of record part number: 4S9453.
Also searched as5120-01-289-0635 ·
5120012890635 ·
NIIN 012890635 ·
01-289-0635 ·
FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 11083 · 4S9453
Nearby stock numbers← 5120-01-289-0634 Inserter, Seal
·
5120-01-289-0636 Inserter, Seal →
Features
Compressor,seal — FSC 5120
General Characteristics Item Description: FOR 6 TO 6-1/4 IN. DIA SEALS IN
Functional Description: USED TO COMPRESS HYDRAULIC CYLINDER SEALS PRIOR TO INSTALLATION
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 5120-01-289-0635
NIIN: 012890635
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
FSG: 51 — Hand Tools
Primary part number: 4S9453
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Compressor,seal, cataloged under National Stock Number 5120-01-289-0635, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5120-01-289-0635
Primary Part Number
4S9453
Item Name
Compressor,seal
FSC / FSG
5120 / 51 — Hand Tools, Nonedged, Nonpowered
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
General Characteristics Item Description
FOR 6 TO 6-1/4 IN. DIA SEALS IN
Functional Description
USED TO COMPRESS HYDRAULIC CYLINDER SEALS PRIOR TO INSTALLATION
Other items in FSC 5120 — Hand Tools, Nonedged, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5120-00-001-2642
ADAPTER,TORQUE WRENCH
5120-00-001-2644
ADAPTER,TORQUE WRENCH
5120-00-001-2650
INSERTER,SEAL
5120-00-001-2651
5120-00-001-2651 · Item name not on file
5120-00-001-2652
INSTALLING TOOL,SHAFT
5120-00-001-2653
REMOVER,PREFORMED PACKING
5120-00-001-2654
REMOVER,PREFORMED PACKING
5120-00-001-2655
SOCKET,WRENCH,FACE SPANNER
Frequently Asked Questions
What is NSN 5120-01-289-0635?
NSN 5120-01-289-0635 is a Compressor,seal, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
What part numbers are listed for NSN 5120-01-289-0635?
NSN 5120-01-289-0635 has 1 manufacturer part number on file: 4S9453 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 4S9453?
Key specifications for 4S9453: General Characteristics Item Description: FOR 6 TO 6-1/4 IN. DIA SEALS IN; Functional Description: USED TO COMPRESS HYDRAULIC CYLINDER SEALS PRIOR TO INSTALLATION. 2 specifications are documented in the U.S. Government catalog.
Is NSN 5120-01-289-0635 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.