# DIBBS #SPE4A6-27-T-4791

DLA solicitation for two self-locking castellated nuts

**Posted:** October 16, 2026
**Respond By:** October 23, 2026
**Identifier:** SPE4A6-27-T-4791
**NAICS:** 332722

The Defense Logistics Agency is seeking two specialized self-locking castellated nuts for its Weapons Support organization.
- **Government buyer:** Defense Logistics Agency (DLA), Weapons Support, ASC Commodities Division; contact: Stephanie Sandridge.
- **OEMs and approved sources:** **SPS Technologies, LLC** (CAGE 56878) and **Sikorsky Aircraft Corporation** (CAGE 78286), both listed for part number SS5093-16.
- **Product requested:** 2 self-locking castellated hexagon nuts, NSN 5310-01-288-9163; part piece number SS5093-16.
- **Notable requirements:** Delivery is FOB Origin, with inspection and acceptance at DLA Distribution San Joaquin in Tracy, California. The technical data is export-controlled; access requires approved Joint Certification Program (JCP) certification and DLA authorization.
- **Performance period:** Delivery is required within 164 days after award.

### Description

NUT, SELF-LOCKING, CASTE (QTY: 2, NSN: 5310-01-288-9163, Purchase Request: 7018683281)
  Approved Sources:
  - CAGE: 56878, Part No: SS5093-16, Company: SPS TECHNOLOGIES, LLC
  - CAGE: 78286, Part No: SS5093-16, Company: SIKORSKY AIRCRAFT CORPORATION
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T4791)