31--BEARING,BALL,ANNULA
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The Department of the Navy, NAVSUP Weapon Systems Support Mechanicsburg, is soliciting proposals for the manufacture and supply of Annular Ball Bearings (NSN: 3HD 3110 009873721NT), designated as a commercial item. This opportunity is a Total Small Business Set-Aside and requires adherence to specific military specifications and qualification requirements. Proposals are due by May 29, 2026.
Scope of Work
This contract requires the manufacture of BEARING,BALL,ANNULA, specifically Standard Part Number M17931-G025, in accordance with MIL-DTL-17931F Military Specification for 'Bearings, Ball, Annular, For Quiet Operation' and other referenced documents. Key requirements include:
- Source Control: Only Government-approved sources will be considered. New suppliers must undergo extensive qualification and testing. Firms with prior approval or satisfactory production history should provide proof for evaluation.
- Qualification: Vendors must be qualified to supply precision ball bearings using 'QTP-MIL-B-17931' and receive final approval from NAVSEA.
- Quality Assurance: Contractor is responsible for all inspection requirements, maintaining an inspection/quality system compliant with MIL-I-45208 or ISO 9001/9002. This includes Quality Conformance Inspection (Contractor) per MIL-DTL-17931F Table VI and MIL-STD-105, and Production Lot Testing (Government) at Naval Surface Warfare Center, Carderock Division.
- Mercury-Free: Materials must be free from metallic mercury and contamination for use on submarines/surface ships.
- Shelf Life: Bearings P/N M17931-G025 have a 60-month extendable shelf life; MIL-B-17931E bearings have a 10-year shelf life.
Contract & Timeline
- Type: Solicitation
- Set-Aside: Total Small Business
- Product Service Code: 3110 (Bearings, Antifriction, Unmounted)
- Response Due: May 29, 2026, 8:30 PM EDT
- Published: May 6, 2026
- Delivery: 180 days for CLIN 0001AA and 0001AB.
- Priority Rating: This will be a DO-rated order under the Defense Priorities and Allocations System (DPAS).
Evaluation Factors
NAVSUP WSS Mechanicsburg will consider past performance in the evaluation of offers in accordance with FAR 13.106(a)(2) and the EVALUATION-COMMERCIAL PRODUCTS AND COMMERCIAL SERVICES (DEV 2026-O0028) clause.
Additional Notes
This solicitation has been amended to change the closing date to May 29, 2026, and to state that the Annular Ball Bearing (NSN: 3HD 3110 009873721NT) is now determined a commercial item, with corresponding clause adjustments. All other terms and conditions remain unchanged. Access to drawings, if included, must be requested via SAM.gov, followed by an email to the POC. Certification Data Reports are required 75 days prior to the contractual delivery date.
Contact: Abigail Hurlbut at ABIGAIL.R.HURLBUT.CIV@US.NAVY.MIL or 717-605-6805 for questions.