The Plug,vent, cataloged under National Stock Number 5340-01-356-7051, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-356-7051 |
| Primary Part Number | 2187661CL12 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Length | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| End Connection Type | THREADED |
| Material Document and Classification | AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE |
| Inside Diameter | 0.110 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM |
| Thread Class | 3A A |
| Material | STEEL |
| Thread Size and Series/type Designator | 0.250-28 UNF |
| 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 |
|---|---|
| 2187661CL12 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 2187661CL12 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 5340-01-356-7051 is a Plug,vent, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-356-7051 has 1 manufacturer part number on file: 2187661CL12 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 2187661CL12: Length: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; End Connection Type: THREADED; Material Document and Classification: AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE; Inside Diameter: 0.110 INCHES MINIMUM AND 0.111 INCHES MAXIMUM 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.