The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-841-1823, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-841-1823 |
| Primary Part Number | A02R2849-2 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Flange Width Across Flats | 0.750 INCHES NOMINAL IN |
| Length | 4.500 INCHES NOMINAL IN |
| Flange Thickness | 1.500 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Thread Length | 1.380 INCHES NOMINAL RIGHT EXTERNAL IN |
| Style Designator | FLANGED WITH LEFT INTERNAL THREAD |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE STANDOFF |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.500 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Nominal Thread Size | 0.500 INCHES RIGHT EXTERNAL IN |
| Surface Treatment | CADMIUM STANDOFF |
| Thread Class | 3A RIGHT EXTERNAL A |
| Thread Class | 3B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Test Data Document | 80378-BAC5424 CLASS B SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 20 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 20 RIGHT EXTERNAL |
| Material | STEEL COMP 303 STANDOFF |
| Thread Series Designator | UNF RIGHT EXTERNAL |
| Thread Series Designator | UNF LEFT INTERNAL (INCLUDES THRU THREAD) |
| 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 |
|---|---|
| A02R2849-2 | Delta Machine and Tool Company, Inc. (USA) |
| A02R2849-2 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| A02R2849-2 | 5/9 Secondary reference Creative Precision, Inc. |
NSN 5340-00-841-1823 is a Standoff,threaded,spacing, manufactured by The Boeing Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-841-1823 has 2 manufacturer part numbers on file: A02R2849-2 (Delta Machine and Tool Company, Inc.), A02R2849-2 (The Boeing Company).
Key specifications for A02R2849-2: Flange Width Across Flats: 0.750 INCHES NOMINAL IN; Length: 4.500 INCHES NOMINAL IN; Flange Thickness: 1.500 INCHES NOMINAL IN; Thread Length: 1.000 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN. 19 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.