PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

321531Housing Stater

Caterpillar Inc Div Caterpillar Defense · NSN 2990-01-068-6151 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-01-068-6151 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-068-6151. Primary manufacturer part number: 321531.
Features
  • Housing Stater — FSC 2990
  • 1 verified cross-reference
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Housing Stater, cataloged under National Stock Number 2990-01-068-6151, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHousing Stater
FSC / FSG2990 — No Item Name Available (FSG 29)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083)
Technical Specifications
ParameterValue
NSN2990-01-068-6151
Primary Part Number321531
Item NameHousing Stater
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5365-00-565-4920321531 INTERCHANGEABLE
Plug,machine Thread
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5305-01-110-8470321531 INTERCHANGEABLE
Screw
Brp Us Inc
5999-01-469-997132153-1 INTERCHANGEABLE
Heat Sink,electrical-Electronic
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
Cross-Reference Index
Part NumberManufacturer
321531 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5365-00-565-4920INTERCHANGEABLE
PLUG,MACHINE THREAD
321531
5305-01-110-8470INTERCHANGEABLE
SCREW
321531
5999-01-469-9971INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
32153-1

Frequently Asked Questions

What is NSN 2990-01-068-6151?

NSN 2990-01-068-6151 is a Housing Stater, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-01-068-6151?

NSN 2990-01-068-6151 has 1 cross-referenced part number: 321531 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 2990-01-068-6151?

There are 3 known substitutes for 2990-01-068-6151: 5365-00-565-4920, 5305-01-110-8470, 5999-01-469-9971. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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