The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-086-9389, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Corp Electronic Systems Defensive System Div. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-086-9389 |
| Primary Part Number | ST5H066-3CP |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| Length | 0.450 INCHES MINIMUM AND 0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM0.460 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE STANDOFFQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE STANDOFF |
| Thread Direction | RIGHT-HAND RIGHT EXTERNALRIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.086 INCHES LEFT INTERNAL (INCLUDES THRU THREAD)0.086 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Nominal Thread Size | 0.086 INCHES RIGHT EXTERNAL0.086 INCHES RIGHT EXTERNAL IN |
| Shoulder Width Across Flats | 0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM0.135 INCHES MAXIMUM IN |
| Thread Class | 2A RIGHT EXTERNAL2A RIGHT EXTERNAL A |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD)2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 56 LEFT INTERNAL (INCLUDES THRU THREAD)56 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 56 RIGHT EXTERNAL56 RIGHT EXTERNAL |
| Material | STEEL COMP 303SE STANDOFFSTEEL COMP 303SE STANDOFF |
| Shoulder Length | 0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNALUNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ST5H066-3CP PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
| Reference | Meaning |
|---|---|
| AF0097 | 5/9 Secondary reference Northrop Grumman Corp Electronic Systems Defensive System Div |
NSN 5340-01-086-9389 is a Standoff,threaded,spacing, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-086-9389 has 1 manufacturer part number on file: ST5H066-3CP (Northrop Grumman Corp Electronic Systems Defensive System Div).
Key specifications for ST5H066-3CP: Length: 0.450 INCHES MINIMUM AND 0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM0.460 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE STANDOFFQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE STANDOFF; Thread Direction: RIGHT-HAND RIGHT EXTERNALRIGHT-HAND RIGHT EXTERNAL; Thread Direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD). 15 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.