# DIBBS #SPE7MC-26-T-259S

DLA Solicitation for 28 Mil-Spec Check Valves (NSN 4820-00-819-2820, MS28765-16AL) for KC-135 Aircraft

**Posted:** September 11, 2026
**Respond By:** September 21, 2026
**Identifier:** SPE7MC-26-T-259S
**NAICS:** 332912, 336413

DLA Land and Maritime is requesting bids for check valves used in KC-135 aircraft hydraulic systems.
- Government Buyer:
  - Defense Logistics Agency (DLA), Land and Maritime, Maritime Hardware/Electrical office
- Products Requested:
  - 28 Mil-Spec check valves
    - National Stock Number (NSN): 4820-00-819-2820
    - Military Standard Part Number: MS28765-16AL
    - Designed for KC-135 aircraft hydraulic internal ports, 3000 PSI, Type II systems
- OEMs and Vendors:
  - No specific OEMs or vendors are named in the solicitation
- Unique/Notable Requirements:
  - Must comply with military standards (Mil-Spec, MS28765-16AL)
  - Packaging per ASTM D3951 and MIL-STD-129
  - Destination inspection required
  - Compliance with hazardous materials regulations and prohibition of certain telecommunications equipment
  - Small business program representations required

### Description

VALVE, CHECK (QTY: 28, NSN: 4820-00-819-2820 Mil-Spec, Purchase Request: 7018271647)

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7MC26T259S)