The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-189-4311, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Acr Electronics, Inc. Dba Acr Electronics Inc. Government technical data includes 6 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 | 5340-01-189-4311 |
| Primary Part Number | A1-05-0412 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Acr Electronics, Inc. Dba Acr Electronics Inc |
| Status | ACTIVE |
| Flange Diameter | 0.320 INCHES NOMINAL IN |
| Length | 0.452 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN |
| Flange Thickness | 0.078 INCHES NOMINAL IN |
| Style Designator | FLANGED RIGHT EXTERNAL THREADS |
| Diameter | 0.172 INCHES NOMINAL IN |
| Cross-Sectional Shape | ROUND |
| 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 |
|---|---|
| A1-05-0412 PRIMARY | Acr Electronics, Inc. Dba Acr Electronics Inc (USA) |
NSN 5340-01-189-4311 is a Standoff,threaded,spacing, manufactured by Acr Electronics, Inc. Dba Acr Electronics Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-189-4311 has 1 manufacturer part number on file: A1-05-0412 (Acr Electronics, Inc. Dba Acr Electronics Inc).
Key specifications for A1-05-0412: Flange Diameter: 0.320 INCHES NOMINAL IN; Length: 0.452 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN; Flange Thickness: 0.078 INCHES NOMINAL IN; Style Designator: FLANGED RIGHT EXTERNAL THREADS. 6 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.