# DIBBS #SPE7M4-27-T-1697

DLA solicitation for eight MS28052-02 KC-135 check valves

**Posted:** October 23, 2026
**Respond By:** November 02, 2026
**Identifier:** SPE7M4-27-T-1697
**NAICS:** 332919

The Defense Logistics Agency (DLA) is soliciting eight specification-compliant check valves for KC-135 aircraft pressure lines.
- **Government buyer:** DLA Weapons Support, Fluid Handling Division; the notice identifies Blake Tushar.
- **Requested item:** Eight brass-body check valves, NSN 4820-00-652-2212, manufactured to MS28052-02.
  - Configuration: 1/8-inch OD tube flared inlet and 1/8-inch NPT male outlet; used as a filler check valve on KC-135 aircraft pressure lines.
- **OEM/reference:** Essex (CAGE 55469), part number K1307-2, is identified as a previously approved item.
  - Part number AN5832-2 is expressly unacceptable.
- **Notable requirements:** Surplus buys only; only contracts prior to 1987 will be evaluated.
- **Delivery:** Required within 168 days after order.

### Description

VALVE, CHECK (QTY: 8, NSN: 4820-00-652-2212 Mil-Spec, Purchase Request: 7018831034)

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M427T1697)