The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-145-1233, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Modern Machine Works, Inc. Dba Modern Machine Works. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-145-1233 |
| Primary Part Number | SM-A-800570-1 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Modern Machine Works, Inc. Dba Modern Machine Works |
| Status | ACTIVE |
| Flange Width Across Flats | 0.250 INCHES NOMINAL IN |
| Length | 0.940 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL1 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF |
| Flange Thickness | 0.620 INCHES NOMINAL IN |
| Style Designator | FLANGED WITH LEFT INTERNAL THREAD |
| Material Document and Classification | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE STANDOFF |
| 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 |
| Surface Treatment | CADMIUM AND CHROMATE STANDOFF |
| 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 1016 STANDOFF |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNIFIED 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| SM-A-800570-1 PRIMARY | Modern Machine Works, Inc. Dba Modern Machine Works (USA) |
| Reference | Meaning |
|---|---|
| SM-A-800570-1 | 5/9 Secondary reference Lobaugh Rollin J |
| SM-A-800570-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-145-1233 is a Standoff,threaded,spacing, manufactured by Modern Machine Works, Inc. Dba Modern Machine Works, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-145-1233 has 1 manufacturer part number on file: SM-A-800570-1 (Modern Machine Works, Inc. Dba Modern Machine Works).
Key specifications for SM-A-800570-1: Flange Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 0.940 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL1 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF; Flange Thickness: 0.620 INCHES NOMINAL IN. 18 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.