# DIBBS #SPE7L4-27-U-0115

DLA solicitation for 125 Diamond Chain Co. aircraft-quality roller chains

**Posted:** October 29, 2026
**Respond By:** November 12, 2026
**Identifier:** SPE7L4-27-U-0115
**NAICS:** 333613

The Defense Logistics Agency is seeking aircraft-quality roller chain for the KC-135 boom extension.
- **Government buyer:** Defense Logistics Agency (DLA), Weapons Support, LSO Combat Vehicles and Armament; buyer contact: Heather Kessler.
- **OEM:** **Diamond Chain Co.** (CAGE 72625), part number **X-151054-A**.
- **Product:** 125 roller chains, NSN **3020-00-654-5045**. Each strand is 375 pitches (234.375 inches) long and has a 5/8-inch pitch, single-sprocket configuration, riveted construction, roller-link ends, solid rollers, and 8,000-pound tensile strength.
- **Requirements:** Aircraft quality; intended for the KC-135 aircraft boom extension; critical application item; must meet MIL-STD-130. The cited technical data is TDP Revision A, Generation 1.
- **Quantities and delivery:** Estimated annual quantity is 125 each; guaranteed minimum is 18 each once binding, and the minimum delivery order is 31 each. Delivery is required within 42 days after an order.
- **Performance period:** One year from award, with delivery orders issuable during that year. This is a small-business set-aside.

### Description

CHAIN, ROLLER (QTY: 125, NSN: 3020-00-654-5045, Purchase Request: 1000247845)
  Approved Sources:
  - CAGE: 72625, Part No: X-151054-A
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7L427U0115)