The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-400-1939, 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 14 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 | 5340-01-400-1939 |
| Primary Part Number | 363957-2 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Length | 0.2656 INCHES NOMINAL IN |
| Left Projection Diameter | 0.2740 INCHES MINIMUM AND 0.2790 INCHES MAXIMUM IN |
| Left Projection Length | 0.0312 INCHES NOMINAL IN |
| Thread Length | 0.2969 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | PROJECTION ONE END LEFT INTERNAL THREAD |
| Material Document and Classification | MIL-P-77 MIL SPEC SINGLE MATERIAL RESPONSE STANDOFF |
| Diameter | 0.3430 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.2500 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | ROUND |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 40 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | PLASTIC STANDOFF |
| Thread Series Designator | UNS LEFT INTERNAL (INCLUDES THRU THREAD) |
| 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 |
|---|---|
| 363957-2 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
NSN 5340-01-400-1939 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 5340-01-400-1939 has 1 manufacturer part number on file: 363957-2 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
Key specifications for 363957-2: Length: 0.2656 INCHES NOMINAL IN; Left Projection Diameter: 0.2740 INCHES MINIMUM AND 0.2790 INCHES MAXIMUM IN; Left Projection Length: 0.0312 INCHES NOMINAL IN; Thread Length: 0.2969 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN. 14 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.