The Collar,shaft, cataloged under National Stock Number 3040-01-425-7696, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-425-7696 |
| Primary Part Number | L4-24 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED ALL HOLES |
| Style Designator | PLAIN ROUND |
| Screw Thread Series Designator and Location | ALL HOLES UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.5000 INCHES NOMINAL IN |
| Nominal Thread Size | 0.1380 INCHES ALL HOLES IN |
| Securing Hole Quantity | 4 |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Thickness | 0.2500 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 |
|---|---|
| TAC-250 | Southern Gear & Machine Inc (USA) |
| L4-24 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| C129 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| Reference | Meaning |
|---|---|
| DL424 | 5/9 Secondary reference Allied Devices Corp Dba Absolute Precision Co |
| CS-34 | 5/9 Secondary reference W. M. Berg, Inc. |
NSN 3040-01-425-7696 is a Collar,shaft, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-425-7696 has 3 manufacturer part numbers on file: TAC-250 (Southern Gear & Machine Inc), L4-24 (Roller Bearing Co of America, Inc Div Pic Design), C129 (Designatronics Incorporated Div Sterling Instruments Div).
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-509-6174, 5340-01-675-1209. Verify interchangeability with system specifications before substitution.
Key specifications for L4-24: Securing Hole Type and Location: THREADED ALL HOLES; Style Designator: PLAIN ROUND; Screw Thread Series Designator and Location: ALL HOLES UNIFIED NATIONAL COARSE (UNC); Outside Diameter: 0.5000 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.
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.