PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S503-9Bearing,sleeve

Chrysler Corp Amplex Div · NSN 3120-00-813-1270 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-813-1270 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-813-1270. Primary manufacturer part number: S503-9.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 0.5005 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-B-5687,COMP B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: IRON ALLOY OVERALL
  • Material: OIL LUBRICATING LUBRICATION
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 0.3755 INCHES MINIMUM AND 0.3765 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Iron Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-813-1270, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Chrysler Corp Amplex Div. Government technical data includes 7 verified specifications, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-813-1270
Primary Part NumberS503-9
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerChrysler Corp Amplex Div
StatusACTIVE
Body Outside Diameter0.5005 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
Material Document and ClassificationMIL-B-5687,COMP B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialIRON ALLOY OVERALL
MaterialOIL LUBRICATING LUBRICATION
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter0.3755 INCHES MINIMUM AND 0.3765 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-00-350-8406SM-B-523977-1 INTERCHANGEABLE
Microcircuit,linear
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
S503-9 PRIMARY Chrysler Corp Amplex Div (USA)
S503-9 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
Related Parts
5962-00-350-8406INTERCHANGEABLE
MICROCIRCUIT,LINEAR
SM-B-523977-1

Frequently Asked Questions

What is NSN 3120-00-813-1270?

NSN 3120-00-813-1270 is a Bearing,sleeve, manufactured by Chrysler Corp Amplex Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-813-1270?

NSN 3120-00-813-1270 has 2 cross-referenced part numbers: S503-9 (Chrysler Corp Amplex Div), S503-9 (Chrysler Realty Company Llc Dba Daimler Chrysler).

What NSN replaces 3120-00-813-1270?

There is 1 known substitute for 3120-00-813-1270: 5962-00-350-8406. Verify interchangeability with system specifications before substitution.

What are the specifications of S503-9?

Key specifications for S503-9: Overall Length: 0.2188 INCHES NOMINAL IN; Body Outside Diameter: 0.5005 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN; Material Document and Classification: MIL-B-5687,COMP B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: IRON ALLOY OVERALL. 8 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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