The Spindle,dog, cataloged under National Stock Number 2040-01-443-4835, 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 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-443-4835 |
| Primary Part Number | 803-5959221-31 (316CRES) |
| Item Name | Spindle,dog |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 1.127 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 803-5959221-31 (316CRES) PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-5959221 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2040-01-443-4835 is a Spindle,dog, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-443-4835 has 1 manufacturer part number on file: 803-5959221-31 (316CRES) (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 2040-01-443-4836, 2040-01-443-4847. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5959221-31 (316CRES): Overall Diameter: 1.127 INCHES NOMINAL IN; Overall Length: 4.750 INCHES NOMINAL IN; End Item Identification: WATER TIGHTQUICK ACTING DOOR; Material: STEEL CORROSION RESISTING. 2 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.