PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CD-297Cap,filler Opening

Eaton Corporation · NSN 2590-01-646-1138 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-01-646-1138 — this item is cataloged by the U.S. Government under National Stock Number 2590-01-646-1138. Primary manufacturer part number: CD-297.
Features
  • Cap,filler Opening — FSC 2590
  • Outside Diameter: 4.45 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Eaton Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cap,filler Opening, cataloged under National Stock Number 2590-01-646-1138, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Eaton Corporation. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2590-01-646-1138
Primary Part NumberCD-297
Item NameCap,filler Opening
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerEaton Corporation
StatusACTIVE
Outside Diameter4.45 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2590-00-529-8580 INTERCHANGEABLE
Cap,filler Opening
3895-00-565-6094 INTERCHANGEABLE
Cap Fuel Tank
2590-01-158-1449 INTERCHANGEABLE
Cap,filler Opening
2590-01-187-3994 INTERCHANGEABLE
Cap,filler Opening
Cross-Reference Index
Part NumberManufacturer
X000993-274 Warner Robins Air Logistics Center (USA)
CD-297 PRIMARY Eaton Corporation (USA)
Related Parts
2590-00-529-8580INTERCHANGEABLE
CAP,FILLER OPENING
3895-00-565-6094INTERCHANGEABLE
CAP FUEL TANK
2590-01-158-1449INTERCHANGEABLE
CAP,FILLER OPENING
2590-01-187-3994INTERCHANGEABLE
CAP,FILLER OPENING

Frequently Asked Questions

What is NSN 2590-01-646-1138?

NSN 2590-01-646-1138 is a Cap,filler Opening, manufactured by Eaton Corporation, classified under FSC 2590 (No Item Name Available). Status: active.

What are the part numbers for NSN 2590-01-646-1138?

NSN 2590-01-646-1138 has 2 cross-referenced part numbers: X000993-274 (Warner Robins Air Logistics Center), CD-297 (Eaton Corporation).

What NSN replaces 2590-01-646-1138?

There are 4 known substitutes for 2590-01-646-1138: 2590-00-529-8580, 3895-00-565-6094, 2590-01-158-1449 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CD-297?

Key specifications for CD-297: Outside Diameter: 4.45 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: CAP,FILLER OPENING; Overall Width: 0.70 INCHES NOMINAL IN; Special Features: CAP, FUEL TANK. 4 total characteristics are documented in the Federal Logistics Information System.

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