The Spider,dog,scuttle, cataloged under National Stock Number 2040-01-491-6961, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-491-6961 |
| Primary Part Number | 167-6985306 PART 14 |
| Item Name | Spider,dog,scuttle |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Hub Outside Diameter | 3.890 INCHES NOMINAL IN |
| Hub Bore Diameter | 2.500 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Size | 2 1/4-6 |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Arm Quantity | 8 |
| Material | STEEL |
| Hub Thickness | 5.189 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 167-6985306 PART 14 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H542-1701 PART 14 | 5/2 Secondary reference U.S. Government activity |
| 6985306 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2040-01-491-6961 is a Spider,dog,scuttle, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-491-6961 has 1 manufacturer part number on file: 167-6985306 PART 14 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 2040-01-491-7434, 2040-01-500-5293. Verify interchangeability with system specifications before substitution.
Key specifications for 167-6985306 PART 14: Hub Outside Diameter: 3.890 INCHES NOMINAL IN; Hub Bore Diameter: 2.500 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Thread Size: 2 1/4-6. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.