Main Bearing Kit2990-01-654-5783

NSN 2990-01-654-5783 · NIIN 016545783 · Part number KS12100

Defense Maritime Solutions, Inc. · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 0EYA6

Government record, cited

NSN 2990-01-654-5783 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-654-5783. Manufacturer of record part number: KS12100.

Also searched as 2990-01-654-5783 · 2990016545783 · NIIN 016545783 · 01-654-5783 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 0EYA6 · KS12100

Nearby stock numbers ← 2990-01-654-5731 Control Assembly, Push-Pull · 2990-01-654-6191 Muffler, Exhaust →

Features

Main Bearing Kit — FSC 2990
1 manufacturer part number on file
Manufacturer of record: Defense Maritime Solutions, Inc.

Identification

NSN: 2990-01-654-5783
NIIN: 016545783
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: KS12100
Manufacturer: Defense Maritime Solutions, Inc.

General Description

The Main Bearing Kit, cataloged under National Stock Number 2990-01-654-5783, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Defense Maritime Solutions, Inc.. 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	2990-01-654-5783
Primary Part Number	KS12100
Item Name	Main Bearing Kit
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Defense Maritime Solutions, Inc.
Status	ACTIVE

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
KS12100 PRIMARY	Defense Maritime Solutions, Inc. (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 2990-01-654-5783?

NSN 2990-01-654-5783 is a Main Bearing Kit, manufactured by Defense Maritime Solutions, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-654-5783?

NSN 2990-01-654-5783 has 1 manufacturer part number on file: KS12100 (Defense Maritime Solutions, Inc.).

What are the specifications of KS12100?

Key specifications for KS12100: End Item Identification: ENGINE, MAIN DIESEL P/N 12ZAV40S. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-654-5783 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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