# DIBBS #SPE7MC-27-T-1591

DLA procurement of 75 Bellofram actuator-valve diaphragms

**Posted:** November 06, 2026
**Respond By:** November 16, 2026
**Identifier:** SPE7MC-27-T-1591
**NAICS:** 333995

The Defense Logistics Agency is soliciting 75 specialized actuator-valve diaphragms for an Ohio-class submarine application.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, Maritime Hardware/Electrical; buyer contact: Paula Mcclary.
- **OEM:** **Bellofram Corp. Diaphragm Division** (CAGE 61020), identified as the critical-application item manufacturer. No reseller or other vendor is named.
- **Product requested:** 75 special-shaped actuator-valve diaphragms, manufacturer part number **ABC3-550-500-337-FBJ-2**; NSN **4820-01-455-4806** (also shown as 4820014554806). One bolt hole; end item is an Ohio-class SSN (Trident).
- **Notable requirements:** Mercury must not be intentionally added to or contact furnished hardware, subject to the stated exceptions. Destination inspection and acceptance are required. Delivery is FOB Origin.
- **Delivery timing:** Required within 168 days after award.

### Description

DIAPHRAGM, ACTUATOR VAL (QTY: 75, NSN: 4820-01-455-4806, Purchase Request: 7019023164)

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7MC27T1591)