The Plug,vent, cataloged under National Stock Number 5340-00-489-0982, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Satair A/s. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-489-0982 |
| Primary Part Number | A166 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Satair A/s |
| Status | ACTIVE |
| Refinement Medium Type | FILTERING |
| Length | 0.910 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | CAGE 97484, ANODIZE OR BLUE ANODIZE MFR REF SINGLE TREATMENT RESPONSE |
| Thread Length | 0.255 INCHES NOMINAL IN |
| End Connection Type | THREADED |
| Unthreaded End Length | 0.480 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Thread Class | 3A A |
| Material | ALUMINUM ALLOY |
| Thread Size and Series/type Designator | 7/16-20 UNF |
| Vent Hole Quantity | 2 |
| Refinement Device Type | WIRE FABRIC |
| 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 |
|---|---|
| A166 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| A166 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-489-0982 is a Plug,vent, manufactured by Satair A/s, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-489-0982 has 1 manufacturer part number on file: A166 (Satair A/s).
5 possible matches (shared part number, not a government interchangeability claim): 5910-00-785-6279, 5210-00-871-2573, 4940-01-178-6614. Verify interchangeability with system specifications before substitution.
Key specifications for A166: Refinement Medium Type: FILTERING; Length: 0.910 INCHES NOMINAL IN; Surface Treatment Document and Classification: CAGE 97484, ANODIZE OR BLUE ANODIZE MFR REF SINGLE TREATMENT RESPONSE; Thread Length: 0.255 INCHES NOMINAL IN. 12 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.