The Ring,piston, cataloged under National Stock Number 4310-01-049-5476, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-049-5476 |
| Primary Part Number | 740369-8 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE, W/EXPANDER |
| Features Provided | NONSCORING |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.1300 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 2.250 INCHES IN |
| Material | STEEL EXPANDER |
| 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 |
|---|---|
| 740369-8 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 4310-01-049-5476 is a Ring,piston, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-049-5476 has 1 manufacturer part number on file: 740369-8 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 740369-8: Overall Width: 0.1220 INCHES NOMINAL IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE, W/EXPANDER; Features Provided: NONSCORING; Joint Style: STEP JOINT. 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.