The Block,rotor Bearing, cataloged under National Stock Number 4320-00-368-9909, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-368-9909 |
| Primary Part Number | 544629PC33 |
| Item Name | Block,rotor Bearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE O/A; 1.890 IN. LG O/A; 4.938 IN. LARGEST OD; 4.375 IN. BODY OD; 1ST END,FLANGED,4.938 IN. OD BY 0.625 IN. FLANGE THK W/THREE UNTHD HOLES,0.750 IN. ID CENTERED IN TOP OF FLANGE SPACED 1.125 IN. C TO C W/TWO THD HOLES 0.500 IN. 13 UNC,0.938 IN. DEEP,SPACED 2.688 IN. C TO C; 2ND END,PLAIN,4.375 IN. OD W/KEYWAY 0.875 IN. LG BY 0.234 IN. W BY 0.250 IN. DEEP,LOCATED IN OUTER PERIPHERY OF BODY 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 |
|---|---|
| 544629PC33 PRIMARY | Naval Sea Systems Command (USA) |
| SG3028PC44 PRIMARY | Circor Pumps North America Llc (USA) |
| 544627ALT1PC33 PRIMARY | Naval Sea Systems Command (USA) |
| 3182542REVAPC44 PRIMARY | Naval Sea Systems Command (USA) |
| SG1965PC33 | Circor Pumps North America Llc (USA) |
| S-1407CAX4 PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| SG3006REVAPC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| 544627ALT1PC33 | 5/2 Secondary reference U.S. Government activity |
| SG2122PC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG2066PC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG2125PC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| 3182542REVAPC44 | 5/9 Secondary reference U.S. Government activity |
| SG1965PC33 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG2069PC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG2767PC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| S-1407CAX4 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG3028PC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG1967PC33 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG2765PC44 | 5/9 Secondary reference Siemens Energy, Inc. |
| 544629PC33 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-368-9909 is a Block,rotor Bearing, manufactured by Naval Sea Systems Command, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-368-9909 has 6 manufacturer part numbers on file: 544629PC33 (Naval Sea Systems Command), SG3028PC44 (Circor Pumps North America Llc), 544627ALT1PC33 (Naval Sea Systems Command), 3182542REVAPC44 (Naval Sea Systems Command), SG1965PC33 (Circor Pumps North America Llc) and 1 more.
Key specifications for 544629PC33: General Characteristics Item Description: BRONZE O/A; 1.890 IN. LG O/A; 4.938 IN. LARGEST OD; 4.375 IN. BODY OD; 1ST END,FLANGED,4.938 IN. OD BY 0.625 IN. FLANGE THK W/THREE UNTHD HOLES,0.750 IN. ID CENTERED IN TOP OF FLANGE SPACED 1.125 IN. C TO C W/TWO THD HOLES 0.500 IN. 13 UNC,0.938 IN. DEEP,SPACED 2.688 IN. C TO C; 2ND END,PLAIN,4.375 IN. OD W/KEYWAY 0.875 IN. LG BY 0.234 IN. W BY 0.250 IN. DEEP,LOCATED IN OUTER PERIPHERY OF BODY IN. 1 specification is 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.