The Ring,piston, cataloged under National Stock Number 2805-00-807-9630, 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 Goodrich Corporation. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-807-9630 |
| Primary Part Number | 905277-1 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| FSC Application Data | STRUT ASSEMBLY,LANDING GEARAIRCRAFT |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.2200 INCHES MINIMUM AND 0.2300 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 6.143 INCHES IN |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 905277-1 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| 905277-1 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 905277-1 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 905277-1 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 905277-1 | 5/9 Secondary reference U.S. Government activity |
NSN 2805-00-807-9630 is a Ring,piston, manufactured by Goodrich Corporation, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-807-9630 has 2 manufacturer part numbers on file: 905277-1 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co), 905277-1 (Goodrich Corporation).
Key specifications for 905277-1: FSC Application Data: STRUT ASSEMBLY,LANDING GEARAIRCRAFT; Overall Width: 0.2480 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; 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.
NSN 2805-00-807-9630 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.