The Ring,piston, cataloged under National Stock Number 4310-01-076-9042, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-076-9042 |
| Primary Part Number | 857374-7 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Surface Treatment Document and Classification | EMS 52410,TYP 1,CL B MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Cross-Sectional Shape Style | INSIDE BEVEL, UPPER, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0550 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Surface Treatment | CHROMIUM OVERALL |
| Standard Bore Diameter | 1.434 INCHES IN |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 857374-7 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 857374-7 | 5/9 Secondary reference U.S. Government activity |
NSN 4310-01-076-9042 is a Ring,piston, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-076-9042 has 1 manufacturer part number on file: 857374-7 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 857374-7: Surface Treatment Document and Classification: EMS 52410,TYP 1,CL B MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Width: 0.0800 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM IN; Cross-Sectional Shape Style: INSIDE BEVEL, UPPER, STRAIGHT FACE; Joint Style: VERTICAL JOINT. 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.