# DIBBS #SPE4A6-26-T-37YM

DLA Aviation solicitation for four self-locking aerospace double nuts

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

DLA Aviation is seeking four aerospace self-locking extended-washer double nuts for a critical application.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Aviation, ASC Commodities Division.
- **Product requested:** 4 EA of a self-locking extended-washer double nut, NSN 5310-01-656-2581; approved-source part number BACN10HR20C.
- **OEMs / approved sources:** **Howmet Global Fastening Systems Inc.** (also listed as Howmet Global Fastening Systems; CAGE 15653), **Space-Lok, Inc.** (CAGE 16258), **Bristol Industries, LLC** (CAGE 27238), **SPS Technologies, LLC** (CAGE 56878), and **The Boeing Company** (CAGE 81205).
- **Notable requirements:** The item is identified as a critical application item and commercial off-the-shelf (COTS). FAA airworthiness approval, supply-chain traceability documentation, and specified packaging and marking are required.
- **Delivery:** Required within 164 days after award.

### Description

NUT, SELF-LOCKING, EXTEN (QTY: 4, NSN: 5310-01-656-2581, Purchase Request: 7018458124)
  Approved Sources:
  - CAGE: 15653, Part No: BACN10HR20C, Company: HOWMET GLOBAL FASTENING SYSTEMS INC
  - CAGE: 16258, Part No: BACN10HR20C, Company: SPACE-LOK, INC.
  - CAGE: 27238, Part No: BACN10HR20C, Company: BRISTOL INDUSTRIES, LLC
  - CAGE: 56878, Part No: BACN10HR20C, Company: SPS TECHNOLOGIES, LLC
  - CAGE: 81205, Part No: BACN10HR20C, Company: THE BOEING COMPANY
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A626T37YM)