# DIBBS #SPE4A1-27-T-0273

DLA solicitation for 11,145 retaining rings, NSN 5325-01-053-6183

**Posted:** November 06, 2026
**Respond By:** November 13, 2026
**Identifier:** SPE4A1-27-T-0273
**NAICS:** 332722, 332721

The Defense Logistics Agency is seeking a large quantity of aerospace retaining rings for its Aviation Supply Chain.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, Aviation Supply Chain; buyer contact: Jade Stringfield.
- **Requirement:** 11,145 retaining rings, NSN 5325-01-053-6183 (unit of issue: each).
- **OEMs and named sources:** **Lockheed Martin Corp.** (P/N C9538-4); **Howmet Global Fastening Systems Inc.** (P/Ns C9538-4 and CA21037CL-4R); **Fairchild Fasteners Europe - Camloc** (P/N CA21037CL-4R); and **Monadnock Company** (P/Ns 120001-4 and C9538-4). These are identified as the item source or approved-source alternatives.
- **Technical and delivery requirements:** Item must conform to drawing 81755 C9538, Revision L, and TDP Revision A, Generation 1. Delivery is required within 99 days; inspection and acceptance are at DLA Distribution San Diego. Export-controlled technical data and source-approval requirements apply.

### Description

RING, RETAINING (QTY: 11145, NSN: 5325-01-053-6183, Purchase Request: 7019022665)
  Approved Sources:
  - CAGE: 29372, Part No: C9538-4, Company: HOWMET GLOBAL FASTENING SYSTEMS INC
  - CAGE: 29372, Part No: CA21037CL-4R, Company: HOWMET GLOBAL FASTENING SYSTEMS INC
  - CAGE: 60119, Part No: 120001-4
  - CAGE: 60119, Part No: C9538-4
  - CAGE: D0680, Part No: CA21037CL-4R, Company: FAIRCHILD FASTENERS EUROPE - CAMLOC
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A127T0273)