# DIBBS #SPE4A0-26-T-4856

DLA Solicitation for Mack Boring & Parts Co Lock Washers (NSN 5310-01-558-7726)

**Posted:** September 15, 2026
**Respond By:** September 22, 2026
**Identifier:** SPE4A0-26-T-4856
**NAICS:** 332722

This opportunity is a request from the Defense Logistics Agency (DLA) Aviation Supply Chain ESOC Buys office for Lock Washers to support military supply needs.
- Government Buyer:
  - Defense Logistics Agency (DLA), DLA Aviation, Aviation Supply Chain ESOC Buys office
- OEMs and Vendors:
  - Mack Boring & Parts Co is the approved source and OEM for the requested washer
- Products/Services Requested:
  - Washer, Lock (NSN 5310-01-558-7726)
    - Mack Boring & Parts Co part number: 9-09150-508-0
    - Quantity: 2 units
    - Delivery: FOB Origin to Fort Bragg, NC
- Notable Requirements:
  - Only Mack Boring & Parts Co part number 9-09150-508-0 is approved
  - Compliance with Buy American Act, Berry Amendment, and domestic sourcing restrictions
  - Prohibition on covered defense telecommunications equipment
  - Packaging per ASTM D3951 and MIL-STD-129
  - Inspection and acceptance at destination
  - Delivery required within 5 days of award

### Description

WASHER, LOCK (QTY: 2, NSN: 5310-01-558-7726, Purchase Request: 7018220808)
  Approved Sources:
  - CAGE: 29186, Part No: 9-09150-508-0, Company: MACK BORING & PARTS CO
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A026T4856)