The Worm Shaft, cataloged under National Stock Number 3040-01-355-2948, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-355-2948 |
| Primary Part Number | 123-4775355 ITEM 1L1 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Worm Thread Lead | 0.438 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Worm Pitch Diameter | 1.250 INCHES NOMINAL IN |
| Worm Outside Diameter | 1.5285 INCHES NOMINAL IN |
| Worm Helix Angle | 6 DEG 21 MIN |
| Material | NICKEL ALLOY |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | LEFT-HAND |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Worm Pressure Angle in Deg | 6.350 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 123-4775355 ITEM 1L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 4775355 ITEM 1L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 123-4775355 ITEM 1 | 3/1 Design control — primary reference U.S. Government activity |
| 4775355 ITEM 1 | 5/1 Secondary reference U.S. Government activity |
NSN 3040-01-355-2948 is a Worm Shaft, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-355-2948 has 2 manufacturer part numbers on file: 123-4775355 ITEM 1L1 (Naval Inventory Control Point Mechanicsburg), 4775355 ITEM 1L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 123-4775355 ITEM 1L1: Worm Thread Lead: 0.438 INCHES NOMINAL IN; Criticality Code Justification: ZZZY; Worm Pitch Diameter: 1.250 INCHES NOMINAL IN; Worm Outside Diameter: 1.5285 INCHES NOMINAL IN. 10 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.
NSN 3040-01-355-2948 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.