The Cup, cataloged under National Stock Number 4320-00-972-8399, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Brp Us Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-00-972-8399 |
| Primary Part Number | 553051 |
| Item Name | Cup |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Brp Us Inc |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS; 1.532 IN. OD; 1.105 IN. ID; 1.218 IN. O/A THK; SMALL HOLE IN END OF CUP 0.625 IN. DIA 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 |
|---|---|
| 553051 PRIMARY | Brp Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 553051 | 5/9 Secondary reference U.S. Government activity |
| 553051 | 5/9 Secondary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 1118PC187G | 5/9 Secondary reference U.S. Government activity |
| 553051 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
NSN 4320-00-972-8399 is a Cup, manufactured by Brp Us Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-972-8399 has 1 manufacturer part number on file: 553051 (Brp Us Inc).
Key specifications for 553051: General Characteristics Item Description: BRASS; 1.532 IN. OD; 1.105 IN. ID; 1.218 IN. O/A THK; SMALL HOLE IN END OF CUP 0.625 IN. DIA 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.