The Ring,piston, cataloged under National Stock Number 2805-00-277-2940, 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 Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2805-00-277-2940 |
| Primary Part Number | 47115A |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Cross-Sectional Shape Style | THREE FILLED GROOVES, STRAIGHT FACE SCRAPER |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.1500 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Surface Treatment | NICKEL SILVER OVERALL |
| Standard Bore Diameter | 3.4375 INCHES IN |
| Material | IRON OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 47115A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 47115A | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2805-00-277-2940 is a Ring,piston, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-277-2940 has 1 manufacturer part number on file: 47115A (Brinkley Technology Group Llc Dba Hercules Manufacturing).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-435-0054. Verify interchangeability with system specifications before substitution.
Key specifications for 47115A: Overall Width: 0.1235 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM IN; Cross-Sectional Shape Style: THREE FILLED GROOVES, STRAIGHT FACE SCRAPER; Joint Style: VERTICAL JOINT; Radial Wall Thickness: 0.1500 INCHES NOMINAL IN. 7 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.