The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-309-0931, 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 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-309-0931 |
| Primary Part Number | 721617-23 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lobaugh Rollin J |
| Status | ACTIVE |
| Flange Width Across Flats | 0.250 INCHES NOMINAL IN |
| Length | 1.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS1 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF |
| Flange Thickness | 0.880 INCHES NOMINAL IN |
| Thread Length | 0.286 INCHES NOMINAL RIGHT EXTERNAL IN |
| Thread Length | 0.287 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | FLANGED WITH LEFT INTERNAL THREAD |
| Material Document and Classification | QQ-S-613 FED SPEC SINGLE MATERIAL RESPONSE STANDOFF |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.112 INCHES RIGHT EXTERNAL IN |
| Nominal Thread Size | 0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Surface Treatment | CADMIUM STANDOFF |
| Thread Class | 2A LEFT INTERNAL (INCLUDES THRU THREAD) A |
| Thread Class | 2B RIGHT EXTERNAL |
| Thread Quantity Per Inch | 40 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 40 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 |
| Part Number | Manufacturer |
|---|---|
| 721617-23 PRIMARY | Lobaugh Rollin J (USA) |
| Reference | Meaning |
|---|---|
| 721617-23 | 5/9 Secondary reference Modern Machine Works, Inc. Dba Modern Machine Works |
| 721617-23 | 7/2 Vendor item drawing reference Raytheon Company Div Rmd Strategic |
NSN 5340-01-309-0931 is a Standoff,threaded,spacing, manufactured by Lobaugh Rollin J, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-309-0931 has 1 manufacturer part number on file: 721617-23 (Lobaugh Rollin J).
Key specifications for 721617-23: Flange Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 1.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS1 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF; Flange Thickness: 0.880 INCHES NOMINAL IN. 20 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.