PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12503-7Bushing,sleeve

Cooper Machinery Services Llc · NSN 3120-00-499-2519 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-499-2519 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-499-2519. Primary manufacturer part number: 12503-7.
Features
  • Bushing,sleeve — FSC 3120
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 1.9890 INCHES MINIMUM AND 1.9910 INCHES MAXIMUM IN
  • Body Outside Diameter: 2.2520 INCHES MINIMUM AND 2.2530 INCHES MAXIMUM IN
  • 4 verified cross-references
  • Primary manufacturer: Cooper Machinery Services Llc
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-499-2519, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Cooper Machinery Services Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN3120-00-499-2519
Primary Part Number12503-7
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerCooper Machinery Services Llc
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter1.9890 INCHES MINIMUM AND 1.9910 INCHES MAXIMUM IN
Body Outside Diameter2.2520 INCHES MINIMUM AND 2.2530 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5331-00-096-8255032200-12 INTERCHANGEABLE
O-Ring
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
6515-01-225-9715 INTERCHANGEABLE
Tube,endobronchial
5985-01-232-6344675-21136-625 INTERCHANGEABLE
Waveguide Assembly
The Boeing Company Div Legacy Wichita
5365-01-533-815212503007 INTERCHANGEABLE
Spacer,plate
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
12503-7 Cooper Machinery Services Llc (USA)
G4772 Paramount Tool and Equipment Corp (USA)
12503-007 Cooper Machinery Services Llc (USA)
75777-3 Cooper Machinery Services Llc (USA)
Related Parts
5331-00-096-8255INTERCHANGEABLE
O-RING
032200-12
6515-01-225-9715INTERCHANGEABLE
TUBE,ENDOBRONCHIAL
5985-01-232-6344INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
675-21136-625
5365-01-533-8152INTERCHANGEABLE
SPACER,PLATE
12503007

Frequently Asked Questions

What is NSN 3120-00-499-2519?

NSN 3120-00-499-2519 is a Bushing,sleeve, manufactured by Cooper Machinery Services Llc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-499-2519?

NSN 3120-00-499-2519 has 4 cross-referenced part numbers: 12503-7 (Cooper Machinery Services Llc), G4772 (Paramount Tool and Equipment Corp), 12503-007 (Cooper Machinery Services Llc), 75777-3 (Cooper Machinery Services Llc).

What NSN replaces 3120-00-499-2519?

There are 4 known substitutes for 3120-00-499-2519: 5331-00-096-8255, 6515-01-225-9715, 5985-01-232-6344 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12503-7?

Key specifications for 12503-7: Material: COPPER ALLOY OVERALL; Body Inside Diameter: 1.9890 INCHES MINIMUM AND 1.9910 INCHES MAXIMUM IN; Body Outside Diameter: 2.2520 INCHES MINIMUM AND 2.2530 INCHES MAXIMUM IN; Overall Length: 1.7500 INCHES NOMINAL IN. 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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