# DIBBS #SPE4A6-26-T-37SN

DLA Aviation procurement of 526 boxes of safety-critical self-locking nuts with first-article and production-lot testing

**Posted:** September 30, 2026
**Respond By:** October 07, 2026
**Identifier:** SPE4A6-26-T-37SN
**NAICS:** 332722

DLA Aviation is seeking 526 boxes of safety-critical self-locking nuts, with testing and first-article approval required.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Aviation, ASC Commodities Division; buyer contact: Michael Blain.
- **Product:** 526 boxes total of self-locking double-hexagon nuts, NSN 5310-01-093-2471, approved-source part number SS5086C06S. Each box contains 50 nuts, for 26,300 production nuts total.
  - CLIN 0001: 263 boxes for delivery to DLA Distribution, DDSP New Cumberland Facility.
  - CLIN 0002: 263 boxes for delivery to DLA Distribution San Joaquin.
- **Named approved-source manufacturers:** **Bristol Industries, LLC; SPS Technologies, LLC; Airtronics, LLC; and Sikorsky Aircraft Corporation.** The solicitation identifies SS5086C06S as the associated approved-source part number.
- **Testing and approval:** First-article approval is required; the contractor must provide two units within 90 calendar days of contract date, with the first-article test identified as a separate line item. Government production-lot testing is also required after first-article approval, generally using two randomly selected samples unless the applicable sample plan specifies otherwise.
- **Technical requirements:** A286 corrosion-resistant steel; specified precipitation heat treatment to a maximum Rockwell C hardness of 42; silver plating; and 100% fluorescent penetrant inspection. The item is identified as a critical application/safety item.
- **Other notable requirements:** SAE AS9100 or equivalent quality management and export-control eligibility for access to technical data. The opportunity is set aside for Economically Disadvantaged Women-Owned Small Businesses (EDWOSB).

### Description

GOVERNMENT FIRST ARTIC (QTY: Qty - See Solicitation, NSN: 0001S00000052, Purchase Request: 7018488635)
PRODUCTION LOT TESTING (QTY: Qty - See Solicitation, NSN: 0001S00000061, Purchase Request: 7018488635)
NUT, SELF-LOCKING, DO (QTY: 526, NSN: 5310-01-093-2471, Purchase Request: 7018488635)
  Approved Sources:
  - CAGE: 27238, Part No: SS5086C06S, Company: BRISTOL INDUSTRIES, LLC
  - CAGE: 56878, Part No: SS5086C06S, Company: SPS TECHNOLOGIES, LLC
  - CAGE: 58078, Part No: SS5086C06S, Company: AIRTRONICS, LLC
  - CAGE: 78286, Part No: SS5086C06S, Company: SIKORSKY AIRCRAFT CORPORATION
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A626T37SN)