# DIBBS #SPE4A6-27-T-7955

DLA procurement of 199 self-locking castellated hexagon nuts

**Posted:** November 03, 2026
**Respond By:** November 10, 2026
**Identifier:** SPE4A6-27-T-7955
**NAICS:** 332722

DLA Weapons Support is seeking 199 approved-source self-locking castellated hexagon nuts for a critical application.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, ASC Commodities Division; buyer contact: Dana Barefoot.
- **Item:** 199 self-locking castellated hexagon nuts, NSN 5310-01-049-7357.
- **OEMs and approved sources:** **Eaton Aeroquip LLC** (P/N 57979-3); **SPS Technologies, LLC** (P/Ns 57979-3 and 72412-1032); **Greer Stop Nut Inc.** (P/N 80HS040-1032). The specified piece number is 57979-3.
- **Notable requirements:** Critical application item; must comply with the referenced drawing and technical data package. Export-controlled technical data access and CMMC Level 2 requirements apply. Delivery is FOB Origin, with destination inspection and acceptance.

### Description

NUT, SELF-LOCKING, CASTE (QTY: 199, NSN: 5310-01-049-7357, Purchase Request: 7018342028)
  Approved Sources:
  - CAGE: 00624, Part No: 57979-3, Company: EATON AEROQUIP LLC
  - CAGE: 27687, Part No: 80HS040-1032
  - CAGE: 56878, Part No: 72412-1032, Company: SPS TECHNOLOGIES, LLC
  - CAGE: 80539, Part No: 57979-3
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T7955)