The Ring,piston, cataloged under National Stock Number 4310-00-419-5449, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is The Boeing Company Div Defense. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-419-5449 |
| Primary Part Number | 32-45612-3 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| FSC Application Data | SHOCK STRUT,LANDING GEAR |
| Material Document and Classification | MIL-P-79,TYPE FBE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.1845 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 3.994 INCHES IN |
| Material | PLASTIC PHENOLIC 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 |
|---|---|
| 2-45612-3 | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA) |
| 32-45612-3 PRIMARY | The Boeing Company Div Defense (USA) |
| 2-45612-3 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| 2-45612-3 | Kitco Llc (USA) |
NSN 4310-00-419-5449 is a Ring,piston, manufactured by The Boeing Company Div Defense, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-419-5449 has 4 manufacturer part numbers on file: 2-45612-3 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc), 32-45612-3 (The Boeing Company Div Defense), 2-45612-3 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), 2-45612-3 (Kitco Llc).
Key specifications for 32-45612-3: FSC Application Data: SHOCK STRUT,LANDING GEAR; Overall Width: 0.4970 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN; Material Document and Classification: MIL-P-79,TYPE FBE MIL 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.
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.