SL4 — RING,PISTON

SL4 is cataloged as RING,PISTON. It carries 4 NSN identities and cross-references to 6 related part numbers. An FAA PMA relationship is on file. The part appears on MCRL cross-reference data.

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NSN identities

NSN 001312990 — RING,PISTON
NSN 010175151 — CONTACT KIT,ELECTRICAL
NSN 010977413 — LIMIT STOP,MOTOR
NSN 017073669 — HANDLE,SOCKET WRENCH

Approved sources (CAGE)

1J112 SNAP-ON TOOLS CORP
23266 SECS INC
56365 SCHNEIDER ELECTRIC USA, INC. · P/N 9998SL4
63857 CIRCOR NAVAL SOLUTIONS LLC
5L122 HOYT CORPORATION · P/N KG5520
51918 SCHNEIDER ELECTRIC USA, INC.
51918 SCHNEIDER ELECTRIC USA, INC. · P/N 9998SL4
5L122 HOYT CORPORATION · P/N K520
63857 CIRCOR NAVAL SOLUTIONS LLC · P/N BS1192PC30
12115 DRS ICAS, LLC · P/N SC3040-0002-4
51918 SCHNEIDER ELECTRIC USA, INC. · P/N 999SL4

Government purchase history

Distinct Vendors: 0
Total: $0.00
Total Amount: $0.00

Government pricing & management

Aac: J
Aac Label: Not stocked, centrally procured on demand
Effective Date: 2026-10-01
Moe: DN
Niin: 001312990
Qup: 1
Slc: 0
Sos: SMS
Sos Label: DLA
Ui: EA
Unit Price: $205.45

Demand

Buyer Requests 90d: 0
Buyer Requests All: 0
Open Solicitations: 0

Market on PartsAndPlanes

Active Listings: 0
Avg Price: $0.00
Max Price: $0.00
Min Price: 0
Sellers: 0
Total Quantity: 0

Availability

Band: Scarce
Note: No active listings, PMA sources, or award history on file yet.

Related part numbers

9998SL4, 999SL4, BS1192PC30, K520, KG5520, SC3040-0002-4

FAA-PMA

SL4 is an FAA-PMA part by Hartzell Propeller LLC

PMA PQ2040CE. Approved as a replacement for Modification Article on Lycoming Division Avco Corporation O-290 (Engine Preheat Kit) · Current, Aug 2025.

The OEM number it replaces, and who sells those here

MODIFICATIONARTICLEno listing here yet

A PMA part is approved for the specific eligibility listed on its FAA record; whether it may be installed on a particular aircraft, engine or component is the installer's determination. This page states the FAA record and the listings on PartsAndPlanes.