The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-300-1674, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Swagelok Co. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-300-1674 |
| Primary Part Number | PP-QT4-B-DC |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 0.895 INCHES NOMINAL IN |
| Material | PLASTIC |
| 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 |
|---|---|
| PP-QT4-B-DC PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 1551AS479-2 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5340-01-300-1674 is a Cap,protective,dust and Moisture, manufactured by Swagelok Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-300-1674 has 1 manufacturer part number on file: PP-QT4-B-DC (Swagelok Co).
Key specifications for PP-QT4-B-DC: Design Type: FRICTION; Overall Diameter: 0.895 INCHES NOMINAL IN; Special Features: INCLUDES LANYARD,STEEL,CORROSION RESISTANT,COMP 302,COATED WITH POLYTETRAFLUOROETHYLENE,8.000 IN. MIN AND 14.000 IN. MAX LG WITH ALUMINUM,EPOXY COATED,CABLE CLAMPS IN; Material: PLASTIC. 4 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.