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 Annular Ball Bearings (NSN: 3HD 3110 009987775NT, P/N: M17931-A042). This requirement is for a critical bearing and is set aside for Total Small Businesses. The solicitation has been amended to classify the item as commercial and extend the closing date. Proposals are due April 14, 2026.
Scope of Work
This solicitation covers the manufacture and quality assurance of Annular Ball Bearings, specifically P/N: M17931-A042, which is designated as a critical bearing. The bearings must adhere to MIL-B-17931 Military Specification for 'Bearings, Ball, Annular, For Quiet Operation', including specific modifications detailed in Appendix I-IV, Attachment A-D (SPCC FORM 4250/7), ACN-MIL-B-17931, and QTP-MIL-B-17931. The material must be mercury-free for use on submarines/surface ships.
Contract & Timeline
- Type: Solicitation (Emergency Acquisition Flexibilities apply)
- Set-Aside: Total Small Business
- Proposal Due: April 14, 2026, at 8:30 PM Z
- Published: March 10, 2026
- Delivery: CLIN 0001AA and CLIN 0001AB require delivery within 180 days after award.
- Option: Includes an option for increased quantity, up to 180 days after award issuance. Pricing for the option is requested.
Key Requirements & Quality Assurance
This is a Source Control Item, meaning only Government-approved sources will be considered. The item is on the Qualified Products List (QPL), and only QPL-approved items are acceptable. Vendors must be qualified per QTP-MIL-B-17931. Contractors are responsible for quality conformance inspection (MIL-I-45208 or ISO 9001/9002). Production Lot Testing (PLT) and Government Verification Inspection are required. Certification Data Reports via DD Form 250 are due 75 days prior to contractual delivery for each lot shipped for Verification Inspection. Packaging must comply with MIL-STD 2073, and specific matched bearing pairs require special packaging per MIL-DTL-197 method 40B with a "MATCHED SET, DO NOT SEPARATE" caution.
Evaluation
NAVSUP WSS Mechanicsburg will consider past performance in the evaluation of offers, in accordance with FAR 13.106(a)(2).
Additional Notes
This requirement is pursuant to Emergency Acquisition Flexibilities (EAF). Any resultant award will be issued bilaterally and will be DO certified for national defense under the Defense Priorities and Allocations System (DPAS). Access to drawings, if included, must be requested via SAM.gov and followed up with an email to the POC.