The Ring,piston, cataloged under National Stock Number 2805-00-037-9652, 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 Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-037-9652 |
| Primary Part Number | 801372-2 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| FSC Application Data | TURBO FAN,HEAT EXCHANGER,TEMPERATURE CONTROL SYSTEM |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE, W/EXPANDER |
| Joint Style | STEP JOINT |
| Material | STEEL 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 |
|---|---|
| 801372-2 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 10658-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2805-00-037-9652 is a Ring,piston, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-037-9652 has 1 manufacturer part number on file: 801372-2 (Honeywell International Inc. Div Aerospace - Torrance).
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-468-2963, 5306-01-660-1360. Verify interchangeability with system specifications before substitution.
Key specifications for 801372-2: FSC Application Data: TURBO FAN,HEAT EXCHANGER,TEMPERATURE CONTROL SYSTEM; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE, W/EXPANDER; Joint Style: STEP JOINT; Material: STEEL OVERALL. 4 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.