The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-278-9559, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-278-9559 |
| Primary Part Number | P4330556-19 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 2.230 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 0.875 INCHES NOMINAL IN |
| Material | PLASTIC, POLYETHYLENE (PP) |
| Inside Diameter Length | 0.550 INCHES NOMINAL IN |
| Round Cap Outside Surface Condition | SMOOTH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| P4330556-19 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 5340PL2148971 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| CEC-32 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-278-9559 is a Cap,protective,dust and Moisture, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-278-9559 has 1 manufacturer part number on file: P4330556-19 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for P4330556-19: Design Type: FRICTION; Overall Diameter: 2.230 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 0.875 INCHES NOMINAL IN; Special Features: C0LOR BLACK. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.