Sierracin Corporation

Sierracin Corporation, a subsidiary of PPG Industries, Inc., manufactures aerospace and defense transparency systems — aircraft windshields, canopies, window panels, and related components for military rotorcraft, fighter, and tiltrotor platforms — as a prime contractor (93% of recent awards) and subcontractor to major defense primes, competing predominantly in full-and-open (non-set-aside) procurements with the Department of Defense.

Sierracin is a for-profit manufacturer based in Sylmar, California, with no SBA certifications across its prime footprint. The company holds a minority position within PPG Industries' broader aerospace and defense portfolio; PPG is the parent entity and itself an active federal contractor. Sierracin's capability framing is narrowly specialized: aircraft transparency component manufacturing, repair, and overhaul support — PSC codes center on Airframe Structural Components (643 awards) and Miscellaneous Aircraft Accessories and Components (25 awards), with primary NAICS concentrating in Other Aircraft Parts and Auxiliary Equipment Manufacturing (434 awards).

Recent prime contract work demonstrates the scope: a $1.26 million firm fixed-price delivery order from Naval Supply Systems Command (NSSC) awarded April 7, 2026, for windshield panel manufacture (completion August 17, 2026); a $393,343.52 purchase order from Defense Logistics Agency (DLA) Aviation awarded September 23, 2025, for window assemblies (completion December 30, 2026); and a $751,575 purchase order from DLA Aviation awarded May 20, 2025, for aircraft canopy panels (completion May 20, 2026). All represent firm fixed-price, non-set-aside awards under open competitive procurement. Sierracin also holds two significant Indefinite Delivery Vehicles with NSSC: a $35.6 million multiple-award contract for V-22 windshield repair running through September 2027, and a single-award Basic Ordering Agreement for windscreens and canopies extending to September 2027.

Customer concentration is acute and defense-focused. DLA Aviation dominates both volume and dollars: 260 awards totaling $213.8 million combined potential value, representing 54% of the total award count and 55% of total potential value. NSSC ranks second with 136 awards and $153.4 million combined potential value (35% of volume, 39% of dollars). Together these two commands account for 79% of recent awards by count and account for 94% of combined potential value. The Air Force Materiel Command Ogden Air Logistics Complex ($15.3 million across 9 awards) and Defense Contract Management Agency ($3.2 million across 4 awards) follow at much smaller scale. No civilian agency customers appear in the top rankings.

Vehicle position centers on NSSC and DLA Aviation IDVs and BOAs. The top parent vehicles include Basic Ordering Agreement N0038317GN001 (18 task orders, $11.2 million), Indefinite Delivery Contract SPE4A719D0371 (14 task orders, $8.9 million), and Basic Ordering Agreement N0038312G005D (10 task orders, $11.1 million). Sierracin holds positions on five major parent vehicles accounting for the visible task-order volume; the source's top five vehicles carry 62 task orders with combined potential value of $39.4 million.

Activity over the past five years shows growth in absolute count (9 awards in 2022 to 27 each in 2024 and 2025) offset by declining average award size — 2025 and 2026 year-to-date show three awards in 2026 (through April 29). The recompete cliff presents minimal near-term risk: only seven awards (combined potential value $3.4 million) reach ultimate completion within the next twenty-four months, reflecting the long tail of aerospace repair and sustainment work characteristic of the customer base.

Sierracin's subcontractor footprint is extensive and centers on the defense primes that integrate aircraft: The Boeing Company (multiple sub awards for windshield panels, PBL material support, and F/A-18E aircraft support spanning 2023 through May 2025), Lockheed Martin Corporation (numerous sub awards for F-35 transparency canopy components and updates, running across 2022–2024), Bell Boeing Joint Project Office (V-22 production long-lead items and PBL effort, 2023–2025), and Sikorsky Aircraft Corporation (FY24 Delta Spares and presidential helicopter VXX program engineering and manufacturing development, 2025–2026). Across all primes, Sierracin supplies aircraft transparency components — windshield panels, canopy assemblies, and related structures — as a critical single-source or approved-supplier item reflecting proprietary coating and substrate expertise inherited from PPG's materials portfolio. The source notes Sierracin maintains "significant subcontract relationships" with Boeing, Lockheed Martin, and Sikorsky, underscoring its position as a specialized transparency supplier rather than a general systems integrator.

Corporate structure identifies Sierracin Corporation as a wholly owned subsidiary of PPG Industries with two additional named subsidiaries: Texstars LLC and Sierracinsylmar Corporation. The source carries no capability detail differentiating these entities; Sierracin Corporation carries the federal award footprint and federal contract authority.

Sierracin's competitive posture is non-set-aside, full-and-open. Every award in the source lists "No Set-Aside Used," and the vendor does not hold or pursue 8(a), SDVOSB, WOSB, or other set-aside designations. The company competes as a small business eligible for small business set-asides (the September 23, 2025, DLA Aviation solicitation for window assemblies was posted as a Total Small Business set-aside with three approved sources, and Sierracin won) but does not reserve competition to set-asides. This posture reflects confidence in open competition and established incumbent status with DLA Aviation and NSSC — the vendor's historical seat on core NSSC and DLA IDVs provides task-order continuity that does not depend on recompete leverage from set-aside eligibility.