The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-391-4233, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Support Services Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-391-4233 |
| Primary Part Number | 123B146H01 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | QQ-C-502, TYPE ETP, TEMP H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Class | 2A RIGHT EXTERNAL A |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | COPPER ALLOY OVERALL |
| Right Projection Diameter | 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |
| Right Projection Length | 1.620 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 123B146H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 123B146H01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-391-4233 is a Standoff,threaded,spacing, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-391-4233 has 1 manufacturer part number on file: 123B146H01 (Northrop Grumman Support Services Corp).
Key specifications for 123B146H01: Length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Style Designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD; Material Document and Classification: QQ-C-502, TYPE ETP, TEMP H FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND RIGHT EXTERNAL. 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.