The Collar,shaft, cataloged under National Stock Number 3040-00-795-7631, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-795-7631 |
| Primary Part Number | 544-8409-002 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED SINGLE HOLE |
| Radius | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Style Designator | ROUND W/ SINGLE EDGE |
| Material Document and Classification | QQ-B-626, ALLOY 360, 1/2H FED SPEC SINGLE MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | SINGLE HOLE UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.086 INCHES SINGLE HOLE IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Securing Hole Quantity | 2 |
| Bore Diameter | 0.2280 INCHES MINIMUM AND 0.2310 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 360 |
| Thickness | 0.159 INCHES MINIMUM AND 0.169 INCHES MAXIMUM 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 |
|---|---|
| 544-8409-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 544-8409-002 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-00-795-7631 is a Collar,shaft, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-795-7631 has 1 manufacturer part number on file: 544-8409-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 544-8409-002: Securing Hole Type and Location: THREADED SINGLE HOLE; Radius: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN; Style Designator: ROUND W/ SINGLE EDGE; Material Document and Classification: QQ-B-626, ALLOY 360, 1/2H FED SPEC SINGLE MATERIAL RESPONSE. 12 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.