# DIBBS #SPE4A6-27-T-6367

DLA request for 143 PTI filter element retainers

**Posted:** October 23, 2026
**Respond By:** October 30, 2026
**Identifier:** SPE4A6-27-T-6367
**NAICS:** 332999

The Defense Logistics Agency is seeking 143 filter element retainers for a critical application, with PTI Technologies Inc. identified as an approved source.
- **Government buyer**
  - Defense Logistics Agency (DLA), DLA Weapons Support, ASC Commodities Division
  - Contact: Christine Donald
- **OEM and requested item**
  - **PTI Technologies Inc.** is the identified approved source and manufacturer.
  - 143 retainer, filter element units; manufacturer part number **52-10637**; NSN **1650-00-229-1681**.
- **Notable requirements**
  - The item is designated a critical application item.
  - Delivery is required within 157 days after award, FOB origin; inspection and acceptance are at origin.
  - Packaging must follow ASTM D3951 and applicable DLA requirements, with marking to MIL-STD-129.

### Description

RETAINER, FILTER ELEMEN (QTY: 143, NSN: 1650-00-229-1681, Purchase Request: 7018683799)
  Approved Sources:
  - CAGE: 05228, Part No: 52-10637, Company: PTI TECHNOLOGIES INC.
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T6367)