# HORIZON REFERENCE SYSTEM FOR ARLEIGH BURKE-CLASS GUIDED MISSILE DESTROYERS, CONSTELLATION-CLASS FRIGATES, AND FREEDOM AND INDEPENDENCE-CLASS LITTORAL COMBAT SHIPS

Canonical: https://abierto.us/opportunities/n6833525r0435

- Solicitation number: N6833525R0435
- Notice type: Presolicitation
- Status: Closed. Deadline was November 5, 2025 at 11:00 AM EST
- Department: Department of the Navy
- Agency: Department of the Navy
- Contracting office: NAVAIR Warfare CTR Aircraft Div (N68335)
- NAICS: 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- Product or service code: 1710 Aircraft Landing Equipment
- First posted: September 17, 2025
- Last posted: October 21, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/8ab46b1679c24723963d92347adebc4b/view

## Description

Amendment 0002 posted to upload updated N6833526R0435 HRS DRAFT SOLICITATION_Rev1 for industry review and feedback, which now includes Section L, Part B Specific Instructions (see pages 101-105). This section was inadvertently left out of the initial draft solicitation document posted under Amendment 0001. All other instructions and applicable attachments previously uploaded and included below remain unchanged.

## Publications

- September 17, 2025: Presolicitation, due October 2, 2025 at 5:00 PM EDT. Notice 318c0e10b1e54329b69209a7b8b66af6. https://sam.gov/workspace/contract/opp/318c0e10b1e54329b69209a7b8b66af6/view
- September 17, 2025: Presolicitation, due October 2, 2025 at 5:00 PM EDT. Notice 3afad22386584f509f18045abfcd30cd. https://sam.gov/workspace/contract/opp/3afad22386584f509f18045abfcd30cd/view
- September 17, 2025: Sources sought, due September 24, 2025 at 5:30 AM EDT. Notice 43a27f9906f54e16bb41bbe2a918a07f. https://sam.gov/workspace/contract/opp/43a27f9906f54e16bb41bbe2a918a07f/view
- September 18, 2025: Presolicitation, due October 2, 2025. Notice 36260a0bc0414efd8b8dca2a6e997de6. https://sam.gov/workspace/contract/opp/36260a0bc0414efd8b8dca2a6e997de6/view
- October 16, 2025: Presolicitation, due November 5, 2025 at 12:00 PM EST. Notice 580355fe7a504736b0cb7016e74d1894. https://sam.gov/workspace/contract/opp/580355fe7a504736b0cb7016e74d1894/view
- October 16, 2025: Presolicitation, due November 5, 2025 at 11:00 AM EST. Notice 68a94a6ab76c4e16b1e88488dc35bfb2. https://sam.gov/workspace/contract/opp/68a94a6ab76c4e16b1e88488dc35bfb2/view
- October 16, 2025: Presolicitation, due November 5, 2025 at 12:00 PM EST. Notice c54a41adb39d4a53bf9daab554e704c6. https://sam.gov/workspace/contract/opp/c54a41adb39d4a53bf9daab554e704c6/view
- October 21, 2025: Presolicitation, due November 5, 2025 at 11:00 AM EST. Notice 8ab46b1679c24723963d92347adebc4b. https://sam.gov/workspace/contract/opp/8ab46b1679c24723963d92347adebc4b/view

## Points of contact

- Kelly Gray, kelly.e.gray13.civ@us.navy.mil
- Melissa Bucci, melissa.a.bucci.civ@us.navy.mil

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/n6833525r0435.