The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-423-0877, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lobaugh Rollin J. Government technical data includes 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-423-0877 |
| Primary Part Number | SM-A-800570-15 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lobaugh Rollin J |
| Status | ACTIVE |
| Left Counterbore Depth | 0.094 INCHES NOMINAL IN |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Length | 0.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.380 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Thread Length | 0.308 INCHES NOMINAL RIGHT EXTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Left Counterbore Diameter | 0.158 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.138 INCHES RIGHT EXTERNAL IN |
| Nominal Thread Size | 0.138 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A RIGHT EXTERNAL A |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 RIGHT EXTERNAL |
| Material | STEEL COMP 1213 OVERALL |
| Right Projection Diameter | 0.138 INCHES NOMINAL 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 | 0.370 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 |
|---|---|
| SM-A-800570-15 PRIMARY | Lobaugh Rollin J (USA) |
| Reference | Meaning |
|---|---|
| SM-A-800570-15 | 5/9 Secondary reference Modern Machine Works, Inc. Dba Modern Machine Works |
| SM-A-800570-15 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5340-01-423-0877 is a Standoff,threaded,spacing, manufactured by Lobaugh Rollin J, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-423-0877 has 1 manufacturer part number on file: SM-A-800570-15 (Lobaugh Rollin J).
Key specifications for SM-A-800570-15: Left Counterbore Depth: 0.094 INCHES NOMINAL IN; Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 0.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 24 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.