The Plug,leakproof Seal, cataloged under National Stock Number 5340-01-596-6729, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-596-6729 |
| Primary Part Number | NK0728-1L1 |
| Item Name | Plug,leakproof Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| NK0728-1L1 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| NK728-1LI | 3/9 Design control — primary reference Emerson Automation Solutions Final Control Us Lp |
| NK0728-1L1 | 5/9 Secondary reference Dresser-Rand Company |
| NP-722PC12 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp |
| NK728-1L1 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp |
NSN 5340-01-596-6729 is a Plug,leakproof Seal, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-596-6729 has 1 manufacturer part number on file: NK0728-1L1 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for NK0728-1L1: Part Name Assigned by Controlling Agency: PLUG; Material: STEEL CORROSION RESISTING. 1 specification is 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.