The Plug,leakproof Seal, cataloged under National Stock Number 5340-01-514-2265, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 3 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-514-2265 |
| Primary Part Number | P-9399 |
| Item Name | Plug,leakproof Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Overall Diameter | 0.990 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Thread Size and Series/type Designator | 0.250-20 UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| P-9399 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 5340-01-514-2265 is a Plug,leakproof Seal, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-514-2265 has 1 manufacturer part number on file: P-9399 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for P-9399: Overall Height: 0.450 INCHES NOMINAL IN; Overall Diameter: 0.990 INCHES NOMINAL IN; Special Features: STEEL S 396-2; Part Name Assigned by Controlling Agency: MANIFOLD PLUG. 3 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.