The Collar,shaft, cataloged under National Stock Number 3040-00-254-4893, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-254-4893 |
| Primary Part Number | SC-B-34495 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — No Item Name Available |
| Manufacturer | Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir |
| Status | ACTIVE |
| Screw Thread Series Designator and Location | SINGLE HOLE UNIFIED NATIONAL COARSE (UNC) |
| Bore Diameter | 0.2520 INCHES MINIMUM AND 0.2540 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.164 INCHES SINGLE HOLE IN |
| Surface Treatment | CHROMIUM |
| Material Document and Classification | QQ-B-626, ALLOY 360, 1/2H FED SPEC SINGLE MATERIAL RESPONSE |
| Securing Hole Type and Location | THREADED SINGLE HOLE |
| Style Designator | ROUND W/ SINGLE EDGE |
| Material | COPPER ALLOY 360 |
| Thickness | 0.437 INCHES NOMINAL IN |
| Radius | 0.125 INCHES NOMINAL IN |
| Securing Hole Quantity | 1 |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M121 | Smart Machines, Inc. Dba Barker and Williamson (USA) |
| 77A044 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| SC-B-34495 PRIMARY | Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA) |
| M121 | Barker & Williamson (USA) |
NSN 3040-00-254-4893 is a Collar,shaft, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 3040 (No Item Name Available). Status: active.
NSN 3040-00-254-4893 has 4 cross-referenced part numbers: M121 (Smart Machines, Inc. Dba Barker and Williamson), 77A044 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), SC-B-34495 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), M121 (Barker & Williamson).
There are 4 known substitutes for 3040-00-254-4893: 5998-00-152-8372, 5360-00-597-0769, 5330-00-641-3122 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for SC-B-34495: Screw Thread Series Designator and Location: SINGLE HOLE UNIFIED NATIONAL COARSE (UNC); Bore Diameter: 0.2520 INCHES MINIMUM AND 0.2540 INCHES MAXIMUM IN; Nominal Thread Size: 0.164 INCHES SINGLE HOLE IN; Surface Treatment: CHROMIUM. 12 total characteristics are documented in the Federal Logistics Information System.