# DIBBS #SPE4A6-27-T-3989

DLA solicitation for 573 source-controlled socket head cap screws

**Posted:** October 14, 2026
**Respond By:** October 21, 2026
**Identifier:** SPE4A6-27-T-3989
**NAICS:** 332722

The Defense Logistics Agency is seeking a source-controlled aerospace fastener for a single-delivery requirement.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, ASC Commodities Division; buyer contact listed as Alexanderia Daniels.
- **Requirement:** 573 socket head cap screws, NSN 5305-01-175-3658, associated with purchase request 7018343448.
- **Approved OEM sources:** **The Boeing Company** (P/N BACF34L4BS4HS; CAGE 81205) and **Howmet Global Fastening Systems Inc.** (P/N CA21189-4-4HS; CAGE 29372).
- **Notable requirements:** Source-controlled critical application item. Vendors must have access to the cited limited-rights data or demonstrate traceability to an approved source. The item references Boeing basic drawing 81205 BACF34L, revision K. Delivery is required within 30 days, FOB origin, with destination inspection and acceptance.

### Description

SCREW, CAP, SOCKET HEAD (QTY: 573, NSN: 5305-01-175-3658, Purchase Request: 7018343448)
  Approved Sources:
  - CAGE: 29372, Part No: CA21189-4-4HS, Company: HOWMET GLOBAL FASTENING SYSTEMS INC
  - CAGE: 81205, Part No: BACF34L4BS4HS, Company: THE BOEING COMPANY
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T3989)