The Universal Joint,nonvehicular, cataloged under National Stock Number 3010-01-393-4646, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-393-4646 |
| Primary Part Number | 211044570 |
| Item Name | Universal Joint,nonvehicular |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Diameter | 0.875 INCHES NOMINAL IN |
| Length From Universal Joint Spider Centerline to Hub End | 1.500 INCHES NOMINAL IN |
| Outside Shape | ROUND |
| 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 |
|---|---|
| 752-6405278-36 | Naval Sea Systems Command (USA) |
| 211044570 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 752-6405278 | D/9 Drawing number reference only Naval Sea Systems Command |
| MIL-U-20625A CL-A-7/8 OD | 4/1 Identification reference U.S. Government activity |
NSN 3010-01-393-4646 is a Universal Joint,nonvehicular, manufactured by Naval Sea Systems Command, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-393-4646 has 2 manufacturer part numbers on file: 752-6405278-36 (Naval Sea Systems Command), 211044570 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 3020-01-393-4647, 3010-01-393-4648, 4940-01-451-8647. Verify interchangeability with system specifications before substitution.
Key specifications for 211044570: Overall Length: 3.000 INCHES NOMINAL IN; Outside Diameter: 0.875 INCHES NOMINAL IN; Special Features: CONNECTION END TYPE: HUB; End Item Identification: USED ON RETRACTABLE WALKWAY SUB-ASSY, SEAWOLF CLASS SUBMARINE; MAJOR DISTANCE ACROSS FLATS: 0.500 IN. NOM.; DISTANCE ACROSS CORNERS: 0.700 IN. NOM. IN. 3 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.