The Ring,piston, cataloged under National Stock Number 4310-00-044-3277, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-044-3277 |
| Primary Part Number | K249337 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| Status | ACTIVE |
| FSC Application Data | AIR COMPRESSOR |
| Material Document and Classification | MFR 33525 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.0700 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 0.620 INCHES IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND COPPER ALLOY 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 |
|---|---|
| K249337 PRIMARY | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 249337 | 5/9 Secondary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| 249337 | 5/9 Secondary reference Kidde-Fenwal, Llc |
| 249337 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| K249337 | C/1 Advisory reference — outside the item-of-supply concept Davey Compressor Co Div of Keco Industries Inc |
NSN 4310-00-044-3277 is a Ring,piston, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-044-3277 has 1 manufacturer part number on file: K249337 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).
Key specifications for K249337: FSC Application Data: AIR COMPRESSOR; Overall Width: 0.0590 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN; Material Document and Classification: MFR 33525 MFR REF 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.