The Cap Assembly, cataloged under National Stock Number 4730-00-972-3303, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-972-3303 |
| Primary Part Number | 128EC10057-1 |
| Item Name | Cap Assembly |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF FOLLOWING ITEM NAMES PART NUMBERS AND QUANTITIES; WASHER AN960D10L 1; WASHER AN960D10 1; SCREW AN5201OR12 1; RIVET MS20470AD4 1; WASHER AN960D4L 1; CHAIN NAF1088-1A-4 1; NUT GN10W-1032 1; SPACER S5-D3-8 1; CAP 128ECM10503-1 1; GASKET 128EC10064-11 1; PLATE 128EC10063-13 1; AIR CON-FLOOR-COCKPIT PRESSURE TEST A |
| 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 |
|---|---|
| 128EC10057-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128EC10057-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-00-972-3303 is a Cap Assembly, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-972-3303 has 1 manufacturer part number on file: 128EC10057-1 (Northrop Grumman Systems Corporation).
Key specifications for 128EC10057-1: General Characteristics Item Description: CONSISTS OF FOLLOWING ITEM NAMES PART NUMBERS AND QUANTITIES; WASHER AN960D10L 1; WASHER AN960D10 1; SCREW AN5201OR12 1; RIVET MS20470AD4 1; WASHER AN960D4L 1; CHAIN NAF1088-1A-4 1; NUT GN10W-1032 1; SPACER S5-D3-8 1; CAP 128ECM10503-1 1; GASKET 128EC10064-11 1; PLATE 128EC10063-13 1; AIR CON-FLOOR-COCKPIT PRESSURE TEST A; End Item Identification: 45N AIRCRAFT, PROWLER EA-6B. 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.