The Collar,shaft, cataloged under National Stock Number 3040-00-402-9799, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-402-9799 |
| Primary Part Number | 1770737 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED 1ST HOLE AND UNTHREADED 2ND HOLE |
| Largest Diameter Length | 0.215 INCHES NOMINAL IN |
| Style Designator | ROUND W/SINGLE CHAMFER |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 416 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 51416 ASSN STD SINGLE MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | 1ST HOLE UNIFIED NATIONAL COARSE (UNC) |
| Hole Diameter and Location | 0.0820 INCHES NOMINAL 2ND HOLE IN |
| Nominal Thread Size | 0.138 INCHES THREAD IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Chamfer Angle in Deg | 45.0 |
| Material | STEEL COMP 416 |
| Thickness | 0.250 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 |
|---|---|
| 1770737 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 41-678 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 1770737 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 3040-00-402-9799 is a Collar,shaft, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-402-9799 has 2 manufacturer part numbers on file: 1770737 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 41-678 (Lockheed Martin Corporation Div Rms - Mitchel Field).
4 possible matches (shared part number, not a government interchangeability claim): 1660-00-547-3619, 4310-00-803-8210, 5999-01-160-0676. Verify interchangeability with system specifications before substitution.
Key specifications for 1770737: Securing Hole Type and Location: THREADED 1ST HOLE AND UNTHREADED 2ND HOLE; Largest Diameter Length: 0.215 INCHES NOMINAL IN; Style Designator: ROUND W/SINGLE CHAMFER; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 416 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 51416 ASSN STD SINGLE MATERIAL RESPONSE. 11 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.