The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-561-1318, 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 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-561-1318 |
| Primary Part Number | HS6003AA3-9750 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Length | 0.562 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-6625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLANGED WITH LEFT INTERNAL THREAD |
| Material Document and Classification | ASTM B221 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-A-225 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 1.250 INCHES NOMINAL IN |
| Nominal Thread Size | 0.190 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | ROUND |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL |
| 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 |
|---|---|
| HS6003AA3-9750 PRIMARY | The Boeing Company (USA) |
NSN 5340-01-561-1318 is a Standoff,threaded,spacing, manufactured by The Boeing Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-561-1318 has 1 manufacturer part number on file: HS6003AA3-9750 (The Boeing Company).
Key specifications for HS6003AA3-9750: Length: 0.562 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-6625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLANGED WITH LEFT INTERNAL THREAD; Material Document and Classification: ASTM B221 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-A-225 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.