# DIBBS #SPE7M2-26-U-0484

Solicitation for CRISSAIR INC Check Valves (NSN 4820-01-318-8732) for DLA Nuclear Reactor Program

**Posted:** September 14, 2026
**Respond By:** September 28, 2026
**Identifier:** SPE7M2-26-U-0484
**NAICS:** 332911

The Defense Logistics Agency (DLA) Land and Maritime Nuclear Reactor Program is soliciting offers for check valves under an indefinite delivery contract.
- Government Buyer:
  - Defense Logistics Agency (DLA), Land and Maritime Nuclear Reactor Program
- OEMs and Vendors:
  - CRISSAIR INC is the approved source and OEM (part number 2S6172)
- Products Requested:
  - 23 Check Valves (NSN 4820-01-318-8732)
    - CRISSAIR INC, Part Number: 2S6172
    - Estimated annual quantity: 23 units
    - Guaranteed minimum: 3 units
- Notable Requirements:
  - Strict compliance with export control, packaging (ASTM D3951, MIL-STD-129), and hazardous material regulations
  - Domestic origin emphasized
  - Cybersecurity requirements apply
  - Prohibition on covered defense telecommunications equipment
  - Delivery required within 188 days from order
  - Technical documentation available
- No other OEMs or vendors listed; CRISSAIR INC is the sole approved manufacturer

### Description

VALVE, CHECK (QTY: 23, NSN: 4820-01-318-8732, Purchase Request: 1000240824)
  Approved Sources:
  - CAGE: 99240, Part No: 2S6172, Company: CRISSAIR INC
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M226U0484)