# DIBBS #SPE4A6-27-T-1544

DLA solicitation for 78 tapered roller bearing assemblies

**Posted:** October 13, 2026
**Respond By:** October 20, 2026
**Identifier:** SPE4A6-27-T-1544
**NAICS:** 332991

The Defense Logistics Agency is seeking 78 tapered roller bearing cone-and-roller assemblies for its Weapons Support organization.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, ASC Commodities Division; buyer contact: Marion Williams.
- **Requested item:** 78 cone-and-roller assemblies for tapered roller bearings, CLIN 0001, NSN 3110-01-682-6010.
  - Drawing: 1223109, latest revision F; drawing part number: 1223109.
  - Approved-source part number: 5578-5535. Alternate part number: 5578-5535.
- **OEMs / approved sources:** **The Timken Corporation** (Timken, CAGE 60038) and **NTN Bearing Corporation of America** (also identified as NTN-Bower, CAGE 0LTL1); both are associated with part number 5578-5535.
- **Notable requirement:** Bearings must be manufactured in the United States, its outlying areas, or Canada. More than 50% of total bearing component costs must come from qualifying locations.
- **Delivery:** Required 167 days after order. Delivery is FOB Origin, with origin inspection and acceptance.

### Description

CONE AND ROLLERS, TAPER (QTY: 78, NSN: 3110-01-682-6010, Purchase Request: 7018681246)
  Approved Sources:
  - CAGE: 0LTL1, Part No: 5578-5535, Company: NTN BEARING CORPORATION OF AMERICA
  - CAGE: 60038, Part No: 5578-5535, Company: THE TIMKEN CORPORATION
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T1544)