PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1904MRetainer,roller,bearing

Rbc Precision Products - Bremen, Inc. · NSN 3110-01-621-5058 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-621-5058 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-621-5058. Primary manufacturer part number: 1904M.
Features
  • Retainer,roller,bearing — FSC 3110
  • Material: STEEL OVERALL
  • Effective Length: 1.480 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
  • Outside Diameter: 0.1560 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: Rbc Precision Products - Bremen, Inc.
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Retainer,roller,bearing, cataloged under National Stock Number 3110-01-621-5058, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rbc Precision Products - Bremen, Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN3110-01-621-5058
Primary Part Number1904M
Item NameRetainer,roller,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerRbc Precision Products - Bremen, Inc.
StatusACTIVE
MaterialSTEEL OVERALL
Effective Length1.480 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Outside Diameter0.1560 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4320-00-398-6904I904M INTERCHANGEABLE
Diaphragm,pump
Siemens Energy, Inc.
Cross-Reference Index
Part NumberManufacturer
1904M PRIMARY Rbc Precision Products - Bremen, Inc. (USA)
Related Parts
4320-00-398-6904INTERCHANGEABLE
DIAPHRAGM,PUMP
I904M

Frequently Asked Questions

What is NSN 3110-01-621-5058?

NSN 3110-01-621-5058 is a Retainer,roller,bearing, manufactured by Rbc Precision Products - Bremen, Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-621-5058?

NSN 3110-01-621-5058 has 1 cross-referenced part number: 1904M (Rbc Precision Products - Bremen, Inc.).

What NSN replaces 3110-01-621-5058?

There is 1 known substitute for 3110-01-621-5058: 4320-00-398-6904. Verify interchangeability with system specifications before substitution.

What are the specifications of 1904M?

Key specifications for 1904M: Material: STEEL OVERALL; Effective Length: 1.480 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN; Outside Diameter: 0.1560 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: ROLLER, NEEDLE. 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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