The Impeller,vacuum Pump, cataloged under National Stock Number 4310-01-110-5187, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Sihi Pumps, Inc.. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4310-01-110-5187 |
| Primary Part Number | 200157 |
| Item Name | Impeller,vacuum Pump |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Sihi Pumps, Inc. |
| Status | ACTIVE |
| Keyway Type | SQUARE |
| Keyway Depth | 0.115 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 6.102 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Blade Quantity | 15 |
| Keyway Length | 1.498 INCHES NOMINAL IN |
| Keyway Width | 0.251 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | FORWARD CURVE |
| 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 |
|---|---|
| 200157 PRIMARY | Sihi Pumps, Inc. (USA) |
| 2600852-056 | Evac North America Inc (USA) |
| Reference | Meaning |
|---|---|
| 2600852-056 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
NSN 4310-01-110-5187 is a Impeller,vacuum Pump, manufactured by Sihi Pumps, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-110-5187 has 2 manufacturer part numbers on file: 200157 (Sihi Pumps, Inc.), 2600852-056 (Evac North America Inc).
1 possible match (shared part number, not a government interchangeability claim): 2360-01-702-4947. Verify interchangeability with system specifications before substitution.
Key specifications for 200157: Keyway Type: SQUARE; Keyway Depth: 0.115 INCHES NOMINAL IN; Design Type: SINGLE WIDTH; Overall Diameter: 6.102 INCHES NOMINAL IN. 12 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.