# DIBBS #SPE4A6-27-T-0538

DLA procurement of 384 source-controlled close-tolerance screws

**Posted:** October 06, 2026
**Respond By:** October 13, 2026
**Identifier:** SPE4A6-27-T-0538
**NAICS:** 332722

The Defense Logistics Agency is seeking a source-controlled aerospace fastener for DLA Weapons Support’s ASC Commodities Division.
- **Buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, ASC Commodities Division.
- **Item:** 384 close-tolerance screws, part number **51B221-5**, NSN **5305-00-802-0571** (CLIN 0001).
- **Named approved sources / OEMs:** SPS Technologies, LLC; Howmet Global Fastening Systems Inc.; Hi-Shear Corporation; and LISI Aerospace Canada Corp Div HI.
- **Important requirements:** This is a critical-application, source-controlled item. Manufacture and testing must follow the cited limited-rights technical data and drawing; suppliers must have access to that data or provide traceability to an approved source. The cited technical references include TDP Rev B Gen 3 and drawing 76823, covering part numbers 51B219 through 51B223, Revision 28.
- **Delivery and acceptance:** Delivery is required 154 days after order, FOB Origin, with inspection and acceptance at destination.

### Description

SCREW, CLOSE TOLERANCE (QTY: 384, NSN: 5305-00-802-0571, Purchase Request: 7018414023)
  Approved Sources:
  - CAGE: 06725, Part No: 51B221-5, Company: SPS TECHNOLOGIES, LLC
  - CAGE: 06950, Part No: 51B221-5, Company: HOWMET GLOBAL FASTENING SYSTEMS INC
  - CAGE: 27624, Part No: 51B221-5, Company: SPS TECHNOLOGIES LLC
  - CAGE: 73197, Part No: 51B221-5, Company: HI-SHEAR CORPORATION
  - CAGE: 80539, Part No: 51B221-5
  - CAGE: 92215, Part No: 51B221-5
  - CAGE: L4528, Part No: 51B221-5
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T0538)