The Nut,impeller, cataloged under National Stock Number 5310-00-787-8879, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Carver Pump Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-787-8879 |
| Primary Part Number | 31HCS18PC22 |
| Item Name | Nut,impeller |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,2.688 IN. OD,1.250 IN. H,THD FEMALE 0.625 IN. 11 UNC THD SIZE,0.750 IN. THD LG,WITH 0.125 IN. W BY 0.250 IN. DP SLOT ON TOP 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 |
|---|---|
| 31HCS18PC22 | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 31HCS18PC22 | 5/9 Secondary reference General Signal Corp |
| 31-10-298 | 5/9 Secondary reference General Signal Corp |
| 31HCS18PC22 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 544-2162-235 | 3/9 Design control — primary reference Aurora Pump a Unit of General Signal Corp |
NSN 5310-00-787-8879 is a Nut,impeller, manufactured by Carver Pump Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-787-8879 has 1 manufacturer part number on file: 31HCS18PC22 (Carver Pump Company).
Key specifications for 31HCS18PC22: General Characteristics Item Description: CRES,2.688 IN. OD,1.250 IN. H,THD FEMALE 0.625 IN. 11 UNC THD SIZE,0.750 IN. THD LG,WITH 0.125 IN. W BY 0.250 IN. DP SLOT ON TOP IN; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 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.