The Ring,piston, cataloged under National Stock Number 4310-01-441-9820, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4310-01-441-9820
Item Name
Ring,piston
FSC / FSG
4310 / 43 — Compressors and Vacuum Pumps
Status
ACTIVE
Standard Bore Diameter
2.188 INCHES IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
211419-2
3/9Design control — primary reference
Cooper Industries Industrial Machinery Div
No interchangeability data on file.
Other items in FSC 4310 — Compressors and Vacuum Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4310-00-000-0050
COMPRESSOR UNIT,RECIPROCATING
4310-00-001-0059
4310-00-001-0059 · Item name not on file
4310-00-001-2044
MOUNTING PAD,TANK,PRESSURE
4310-00-001-3477
PARTS KIT,VACUUM PUMP
4310-00-001-3493
VACUUM PUMP,ROTARY
4310-00-001-6194
4310-00-001-6194 · Item name not on file
4310-00-001-6381
4310-00-001-6381 · Item name not on file
4310-00-001-7755
PARTS KIT,VACUUM PUMP
Frequently Asked Questions
What is NSN 4310-01-441-9820?
NSN 4310-01-441-9820 is a Ring,piston, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
What are the specifications of 4310-01-441-9820?
Key specifications for 4310-01-441-9820: Special Features: THIS NSN IS FOR A GARDNER DENVER PISTON RING SET, NSN-4310-00-563-3734; COMPLETE NAME IS; COMPRESSOR COMPRESSION RING; Standard Bore Diameter: 2.188 INCHES IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4310-01-441-9820 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.