# DIBBS #SPE4A6-27-T-7401

DLA request for 133 critical-application self-locking double-hexagon nuts

**Posted:** October 29, 2026
**Respond By:** November 05, 2026
**Identifier:** SPE4A6-27-T-7401
**NAICS:** 332722, 423710

DLA Weapons Support is seeking 133 critical-application self-locking double-hexagon nuts for an ASC Commodities Division requirement.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, ASC Commodities Division; buyer contact: Alexanderia Daniels.
- **Requested item:** 133 self-locking double-hexagon nuts, NSN 5310-01-443-9839.
- **OEMs and approved sources:** **Howmet Global Fastening Systems Inc.** (H54657-12); **Space-Lok, Inc.** (HS5763-12 and SLN127-12); **Houston Precision Fasteners I LP** (HS5763-12); **Bristol Industries, LLC** (BH00598-12 and HS5763-12); and **SPS Technologies, LLC** (HS5763-12). The notice also lists H54657-12 for an approved source without naming a company.
- **Notable requirements:** The nuts are identified as a critical application item. Packaging must follow ASTM D3951 and marking must follow MIL-STD-129. Delivery is required 485 days after order, FOB origin, with destination inspection and acceptance.

### Description

NUT, SELF-LOCKING, DOUBL (QTY: 133, NSN: 5310-01-443-9839, Purchase Request: 7018852157)
  Approved Sources:
  - CAGE: 15653, Part No: H54657-12, Company: HOWMET GLOBAL FASTENING SYSTEMS INC
  - CAGE: 16258, Part No: HS5763-12, Company: SPACE-LOK, INC.
  - CAGE: 16258, Part No: SLN127-12, Company: SPACE-LOK, INC.
  - CAGE: 1VSL7, Part No: HS5763-12, Company: HOUSTON PRECISION FASTENERS I LP
  - CAGE: 27238, Part No: BH00598-12, Company: BRISTOL INDUSTRIES, LLC
  - CAGE: 27238, Part No: HS5763-12, Company: BRISTOL INDUSTRIES, LLC
  - CAGE: 56878, Part No: HS5763-12, Company: SPS TECHNOLOGIES, LLC
  - CAGE: 75237, Part No: H54657-12
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T7401)