PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4186865-1Ring,adapter Assembly

Bae Systems Land & Armaments L.p. · NSN 2590-01-127-0654 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-01-127-0654 — this item is cataloged by the U.S. Government under National Stock Number 2590-01-127-0654. Primary manufacturer part number: 4186865-1.
Features
  • Ring,adapter Assembly — FSC 2590
  • General Characteristics Item Description: MATERIAL ALUMINUM 5083 PER MIL-A-46027; OPTIONAL MATERIAL ALUMINUM PER MIL-A-45225 5083,TYPE 1,CLASS A; 44.000 IN. DIA; 2.630 IN. LG IN
  • 2 verified cross-references
  • Primary manufacturer: Bae Systems Land & Armaments L.p.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring,adapter Assembly, cataloged under National Stock Number 2590-01-127-0654, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2590-01-127-0654
Primary Part Number4186865-1
Item NameRing,adapter Assembly
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerBae Systems Land & Armaments L.p.
StatusACTIVE
General Characteristics Item DescriptionMATERIAL ALUMINUM 5083 PER MIL-A-46027; OPTIONAL MATERIAL ALUMINUM PER MIL-A-45225 5083,TYPE 1,CLASS A; 44.000 IN. DIA; 2.630 IN. LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-01-118-42454186865 INTERCHANGEABLE
Gasket
Chrysler Realty Company Llc Dba Daimler Chrysler
Cross-Reference Index
Part NumberManufacturer
4186865-1 PRIMARY Bae Systems Land & Armaments L.p. (USA)
4186865 PRIMARY Bae Systems Land & Armaments L.p. (USA)
Related Parts
5330-01-118-4245INTERCHANGEABLE
GASKET
4186865

Frequently Asked Questions

What is NSN 2590-01-127-0654?

NSN 2590-01-127-0654 is a Ring,adapter Assembly, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 2590 (No Item Name Available). Status: active.

What are the part numbers for NSN 2590-01-127-0654?

NSN 2590-01-127-0654 has 2 cross-referenced part numbers: 4186865-1 (Bae Systems Land & Armaments L.p.), 4186865 (Bae Systems Land & Armaments L.p.).

What NSN replaces 2590-01-127-0654?

There is 1 known substitute for 2590-01-127-0654: 5330-01-118-4245. Verify interchangeability with system specifications before substitution.

What are the specifications of 4186865-1?

Key specifications for 4186865-1: General Characteristics Item Description: MATERIAL ALUMINUM 5083 PER MIL-A-46027; OPTIONAL MATERIAL ALUMINUM PER MIL-A-45225 5083,TYPE 1,CLASS A; 44.000 IN. DIA; 2.630 IN. LG IN. 1 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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