The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-121-2827, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. Government technical data includes 7 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 | 5340-01-121-2827 |
| Primary Part Number | 399784-5 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Length | 0.812 INCHES NOMINAL IN |
| Thread Length | 0.312 INCHES NOMINAL RIGHT EXTERNAL IN |
| Style Designator | PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Shoulder Width Across Flats | 0.250 INCHES NOMINAL IN |
| Thread Class | 2A RIGHT EXTERNAL A |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Shoulder Length | 0.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 399784-5 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
NSN 5340-01-121-2827 is a Standoff,threaded,spacing, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-121-2827 has 1 manufacturer part number on file: 399784-5 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
Key specifications for 399784-5: Length: 0.812 INCHES NOMINAL IN; Thread Length: 0.312 INCHES NOMINAL RIGHT EXTERNAL IN; Style Designator: PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD; Shoulder Width Across Flats: 0.250 INCHES NOMINAL IN. 7 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.