The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-456-0797, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-456-0797 |
| Primary Part Number | 1661-D PC7 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lawler Manufacturing Company, Inc. |
| Status | ACTIVE |
| Length | 2.4687 INCHES NOMINAL IN |
| Thread Length | 0.3125 INCHES NOMINAL LEFT EXTERNAL IN |
| Thread Length | 1.5000 INCHES NOMINAL RIGHT INTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.3750 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND RIGHT INTERNAL |
| Thread Direction | RIGHT-HAND LEFT EXTERNAL |
| Nominal Thread Size | 0.2500 INCHES LEFT EXTERNAL IN |
| Nominal Thread Size | 0.2500 INCHES RIGHT INTERNAL IN |
| Cross-Sectional Shape | ROUND |
| Thread Class | 2A LEFT EXTERNAL A |
| Thread Class | 2B RIGHT INTERNAL |
| Thread Quantity Per Inch | 28 LEFT EXTERNAL |
| Thread Quantity Per Inch | 28 RIGHT INTERNAL |
| Material | COPPER ALLOY 360 OVERALL |
| Right Projection Diameter | 0.2500 INCHES NOMINAL IN |
| Thread Series Designator | UNF LEFT EXTERNAL |
| Thread Series Designator | UNF RIGHT INTERNAL |
| Right Projection Length | 0.3125 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 |
| Part Number | Manufacturer |
|---|---|
| 1661-D PART 1661-D-7 | Lawler Manufacturing Company, Inc. (USA) |
| 1661-D PC7 PRIMARY | Lawler Manufacturing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1486 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5340-01-456-0797 is a Standoff,threaded,spacing, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-456-0797 has 2 manufacturer part numbers on file: 1661-D PART 1661-D-7 (Lawler Manufacturing Company, Inc.), 1661-D PC7 (Lawler Manufacturing Company, Inc.).
Key specifications for 1661-D PC7: Length: 2.4687 INCHES NOMINAL IN; Thread Length: 0.3125 INCHES NOMINAL LEFT EXTERNAL IN; Thread Length: 1.5000 INCHES NOMINAL RIGHT INTERNAL IN; Style Designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD. 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.