The Ring,piston, cataloged under National Stock Number 2805-01-153-1655, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Double Seal Ring Co. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-01-153-1655 |
| Primary Part Number | DS8015C24 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Double Seal Ring Co |
| Status | ACTIVE |
| FSC Application Data | LAUNCHER,GUIDED MISSILE,AIRCRAFT LAU-116/A |
| Criticality Code Justification | FEAT |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0600 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 2.000 INCHES IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| DS8015C24 PRIMARY | Double Seal Ring Co (USA) |
| 3930AS1610-C24 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| DW8015C24 | Fluorocarbon Co Grover Piston Ring Div (USA) |
| ST7M342C24 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| FR84C24P | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 10106399 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST7M342 | D/9 Drawing number reference only The Boeing Company Div Defense |
| J8-995 | 5/2 Secondary reference U.S. Government activity |
| FR84C24 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2805-01-153-1655 is a Ring,piston, manufactured by Double Seal Ring Co, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-153-1655 has 4 manufacturer part numbers on file: DS8015C24 (Double Seal Ring Co), 3930AS1610-C24 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), DW8015C24 (Fluorocarbon Co Grover Piston Ring Div), ST7M342C24 (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 2805-01-160-3722. Verify interchangeability with system specifications before substitution.
Key specifications for DS8015C24: FSC Application Data: LAUNCHER,GUIDED MISSILE,AIRCRAFT LAU-116/A; Criticality Code Justification: FEAT; Overall Width: 0.0590 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.