The Ring,wearing, cataloged under National Stock Number 4320-00-792-5101, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Pentair Pump Group, Inc. Dba Fairbanks Morse Pump. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-00-792-5101 |
| Primary Part Number | 99K1 1/2TE |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INSIDE |
| Surface Finish | 250.0 MICROINCHES LEFT FACE |
| Surface Finish | 250.0 MICROINCHES OUTSIDE |
| Surface Finish | 250.0 MICROINCHES RIGHT FACE |
| Corner Shape | SQUARE ALL CORNERS |
| Distance Between Flanges | 0.375 INCHES NOMINAL IN |
| Body Style | EXTERNAL LOCKING FLANGE |
| Distance From End | 0.312 INCHES NOMINAL IN |
| Body Outside Diameter | 5.245 INCHES MINIMUM AND 5.246 INCHES MAXIMUM IN |
| End to Flange Distance | 0.562 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.188 INCHES NOMINAL IN |
| Distance Below Centerline | 0.125 INCHES NOMINAL IN |
| Body Inside Diameter | 4.358 INCHES MINIMUM AND 4.361 INCHES MAXIMUM IN |
| Right Side Flange Thickness | 0.188 INCHES NOMINAL IN |
| Smallest External Anchor Flange Radius | 2.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Largest External Anchor Flange Radius | 2.812 INCHES NOMINAL IN |
| 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 |
|---|---|
| 55-22103-18US | Euramco Safety Inc (USA) |
| K1 1-2T16C | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump (USA) |
| 99K1 1/2TE PRIMARY | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump (USA) |
| Reference | Meaning |
|---|---|
| K1 1-2T16C | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-792-5101 is a Ring,wearing, manufactured by Pentair Pump Group, Inc. Dba Fairbanks Morse Pump, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-792-5101 has 3 manufacturer part numbers on file: 55-22103-18US (Euramco Safety Inc), K1 1-2T16C (Pentair Pump Group, Inc. Dba Fairbanks Morse Pump), 99K1 1/2TE (Pentair Pump Group, Inc. Dba Fairbanks Morse Pump).
Key specifications for 99K1 1/2TE: Surface Finish: 125.0 MICROINCHES INSIDE; Surface Finish: 250.0 MICROINCHES LEFT FACE; Surface Finish: 250.0 MICROINCHES OUTSIDE; Surface Finish: 250.0 MICROINCHES RIGHT FACE. 17 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.