Parts Kit, Turbo Supercharger2990-01-422-4139

NSN 2990-01-422-4139 · NIIN 014224139 · Part number 7C7598

Caterpillar Inc Div Caterpillar Defense · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 11083

Government record, cited

NSN 2990-01-422-4139 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-422-4139. Manufacturer of record part number: 7C7598.

Also searched as 2990-01-422-4139 · 2990014224139 · NIIN 014224139 · 01-422-4139 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 11083 · 7C7598

Nearby stock numbers ← 2990-01-422-4070 Sensor, Engine Coolant Temperatur · 2990-01-422-5226 Vacuum Diaphragm →

Features

Parts Kit,turbo Supercharger — FSC 2990
Component Quantity: 23
End Item Source: 33968
End Item Name: TURBOCHARGER
Nonsupply Items and Quantities: NUT,1;INSERT,1;RING-RETAINING,5;RING-PISTON,2;BEARING ASSY,1;SLEEVE-SPACER,1;BACKPLATE-TURBINE,1;SHAFT AND WHEEL ASSY,1;BEARING,1;RING-THRUST,2;DEFLECTOR,OIL,1;SEAL,O-RING,1;SLEEVE-FLINGER,1;HOUSING ASSY,BEARING,1;PIN-GROOVE,1
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 2990-01-422-4139
NIIN: 014224139
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 7C7598
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Parts Kit,turbo Supercharger, cataloged under National Stock Number 2990-01-422-4139, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories 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 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	2990-01-422-4139
Primary Part Number	7C7598
Item Name	Parts Kit,turbo Supercharger
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE
Component Quantity	23
End Item Source	33968
End Item Name	TURBOCHARGER
Nonsupply Items and Quantities	NUT,1;INSERT,1;RING-RETAINING,5;RING-PISTON,2;BEARING ASSY,1;SLEEVE-SPACER,1;BACKPLATE-TURBINE,1;SHAFT AND WHEEL ASSY,1;BEARING,1;RING-THRUST,2;DEFLECTOR,OIL,1;SEAL,O-RING,1;SLEEVE-FLINGER,1;HOUSING ASSY,BEARING,1;PIN-GROOVE,1

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
7C7598 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

No interchangeability data on file.

Other items in FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2990-00-001-0001

BLOWER ASSEMBLY

2990-00-001-1248

2990-00-001-1248 · Item name not on file

2990-00-001-1250

2990-00-001-1250 · Item name not on file

2990-00-001-2055

2990-00-001-2055 · Item name not on file

2990-00-001-3498

2990-00-001-3498 · Item name not on file

2990-00-001-3520

2990-00-001-3520 · Item name not on file

2990-00-001-3521

2990-00-001-3521 · Item name not on file

2990-00-001-3522

CAP ASSEMBLY,MUFFLE

Frequently Asked Questions

What is NSN 2990-01-422-4139?

NSN 2990-01-422-4139 is a Parts Kit,turbo Supercharger, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-422-4139?

NSN 2990-01-422-4139 has 1 manufacturer part number on file: 7C7598 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 7C7598?

Key specifications for 7C7598: Component Quantity: 23; End Item Source: 33968; End Item Name: TURBOCHARGER; Nonsupply Items and Quantities: NUT,1;INSERT,1;RING-RETAINING,5;RING-PISTON,2;BEARING ASSY,1;SLEEVE-SPACER,1;BACKPLATE-TURBINE,1;SHAFT AND WHEEL ASSY,1;BEARING,1;RING-THRUST,2;DEFLECTOR,OIL,1;SEAL,O-RING,1;SLEEVE-FLINGER,1;HOUSING ASSY,BEARING,1;PIN-GROOVE,1. 4 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-422-4139 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.

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