The Collar,shaft, cataloged under National Stock Number 3040-01-198-5700, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-198-5700 |
| Primary Part Number | S-2110KB |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Material Document and Classification | MIL-S-890, ALLOY NO. 2 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | STEEL |
| 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 |
|---|---|
| SG-3631 PIECE 41 | Circor Pumps North America Llc (USA) |
| S-2110KB PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| 3-307-253 | D/9 Drawing number reference only Naval Sea Systems Command |
| SG-3631 | D/9 Drawing number reference only Circor Pumps North America Llc |
| S-2110KB | C/1 Advisory reference — outside the item-of-supply concept Siemens Energy, Inc. |
NSN 3040-01-198-5700 is a Collar,shaft, manufactured by Circor Pumps North America Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-198-5700 has 2 manufacturer part numbers on file: SG-3631 PIECE 41 (Circor Pumps North America Llc), S-2110KB (Circor Pumps North America Llc).
1 possible match (shared part number, not a government interchangeability claim): 3010-01-199-1933. Verify interchangeability with system specifications before substitution.
Key specifications for S-2110KB: Material Document and Classification: MIL-S-890, ALLOY NO. 2 MIL SPEC SINGLE MATERIAL RESPONSE; End Item Identification: TRANSAMERICA DELAVAL INC PUMP ASSEMBLY,TYPE 3MD550; Material: STEEL. 2 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.