The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-321-0628, 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 8 specifications, 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-321-0628 |
| Primary Part Number | P4330556-1 |
| 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 | 0.480 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 0.250 INCHES NOMINAL IN |
| Connector Nominal Thread Size for Which Designed | 0.250 INCHES IN |
| Material Document and Classification | L-P-390, TYPE 1, CLASS L FED SPEC SINGLE MATERIAL RESPONSE |
| Material | PLASTIC, POLYETHYLENE (PP) |
| Inside Diameter Length | 0.500 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 |
|---|---|
| P4330556-1 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| A2002416 | Thales Avs France SAS (FRA) |
| Reference | Meaning |
|---|---|
| CEC-4 | 5/9 Secondary reference U.S. Government activity |
| 5340PL2148866 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| CEC4 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| CEC-04 | 3/2 Design control — primary reference U.S. Government activity |
| 312995-004 | 5/2 Secondary reference U.S. Government activity |
| 10124178-101 | 7/2 Vendor item drawing reference U.S. Government activity |
| 12438684 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5340-01-321-0628 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 5340-01-321-0628 has 2 manufacturer part numbers on file: P4330556-1 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), A2002416 (Thales Avs France SAS).
Key specifications for P4330556-1: Design Type: FRICTION; Overall Diameter: 0.480 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 0.250 INCHES NOMINAL IN; Connector Nominal Thread Size for Which Designed: 0.250 INCHES IN. 8 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.