The Nut,impeller, cataloged under National Stock Number 5310-00-121-0450, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Nylok Llc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-121-0450 |
| Primary Part Number | EK1CR813E |
| Item Name | Nut,impeller |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Nylok Llc |
| Status | ACTIVE |
| General Characteristics Item Description | HEXAGON SHAPE 0.736 IN.MIN,0.750 IN.MAX DIA;0.740 IN.MIN,0.760 IN.MAX H;ROUNDED TOP 0.677 IN.MIN,0.697 IN.MAX DIA,0.312 IN.RADIUS;HEXAGON FLATS 0.365 IN.MIN,0.385 IN.MAX H;1/2-13UNC-2B THD,MINOR MAJOR DIA 0.417,0.434,P.D. 0.4500,0.4565;CORROSION RESISTANT STEEL 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 |
|---|---|
| EK1CR813E PRIMARY | Nylok Llc (USA) |
| EK1X813X1-2-13 PRIMARY | Pentair Pump Group, Inc. Dba Fairbanks Morse Pump (USA) |
NSN 5310-00-121-0450 is a Nut,impeller, manufactured by Nylok Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-121-0450 has 2 manufacturer part numbers on file: EK1CR813E (Nylok Llc), EK1X813X1-2-13 (Pentair Pump Group, Inc. Dba Fairbanks Morse Pump).
Key specifications for EK1CR813E: General Characteristics Item Description: HEXAGON SHAPE 0.736 IN.MIN,0.750 IN.MAX DIA;0.740 IN.MIN,0.760 IN.MAX H;ROUNDED TOP 0.677 IN.MIN,0.697 IN.MAX DIA,0.312 IN.RADIUS;HEXAGON FLATS 0.365 IN.MIN,0.385 IN.MAX H;1/2-13UNC-2B THD,MINOR MAJOR DIA 0.417,0.434,P.D. 0.4500,0.4565;CORROSION RESISTANT STEEL 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.