NSN 2840-01-174-5687 · NIIN 011745687 · Part number SSCY5257-1
Stein Seal Company · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 03673
Government record, cited
NSN 2840-01-174-5687 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-174-5687. Manufacturer of record part number: SSCY5257-1.
Also searched as2840-01-174-5687 ·
2840011745687 ·
NIIN 011745687 ·
01-174-5687 ·
FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 03673 · SSCY5257-1
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: SSCY5257-1
Manufacturer: Stein Seal Company
General Description
The Ring,matched,seal, cataloged under National Stock Number 2840-01-174-5687, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Stein Seal Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2840-01-174-5687
Primary Part Number
SSCY5257-1
Item Name
Ring,matched,seal
FSC / FSG
2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Other items in FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2840-00-000-0048
ENGINE,AIRCRAFT,TURBO-SHAFT
2840-00-000-0049
MODIFICATION KIT,ENGINE
2840-00-001-1741
CASE AND NOZZLE ASSEMBLY,TURBINE
2840-00-001-1743
2840-00-001-1743 · Item name not on file
2840-00-001-2117
2840-00-001-2117 · Item name not on file
2840-00-001-2284
2840-00-001-2284 · Item name not on file
2840-00-001-3922
2840-00-001-3922 · Item name not on file
2840-00-001-4903
SEAL,AIR,AIRCRAFT GAS TURBINE EN
Frequently Asked Questions
What is NSN 2840-01-174-5687?
NSN 2840-01-174-5687 is a Ring,matched,seal, manufactured by Stein Seal Company, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
What part numbers are listed for NSN 2840-01-174-5687?
NSN 2840-01-174-5687 has 1 manufacturer part number on file: SSCY5257-1 (Stein Seal Company).
What are the specifications of SSCY5257-1?
Key specifications for SSCY5257-1: Criticality Code Justification: AGAV; End Item Identification: ACFT ENG F101. 1 specification is documented in the U.S. Government catalog.
Is NSN 2840-01-174-5687 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 2840-01-174-5687?
NSN 2840-01-174-5687 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.