The Mandrel,roller Tube Expander, cataloged under National Stock Number 3456-00-332-0376, is classified within Federal Supply Class 3456 (Cutting and Forming Tools for Secondary Metalworking Machinery) of the Metalworking Machinery (continued) group. The manufacturer of record is Babcock & Wilcox Co. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 26 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 23 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3456-00-332-0376 |
| Primary Part Number | MX243197-1PC2570 |
| Item Name | Mandrel,roller Tube Expander |
| FSC / FSG | 3456 / 34 — Cutting and Forming Tools for Secondary Metalworking Machinery |
| Manufacturer | Babcock & Wilcox Co |
| Status | ACTIVE |
| Hand Turning Rod | NOT INCLUDED |
| Square Shank Length | 0.750 INCHES NOMINAL IN |
| Drive Type | SQUARE |
| Taper Major Diameter | 0.516 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Size Designator | 0.500 INCHES NOMINAL IN |
| Operation Method | MANUAL OR POWER |
| 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 |
|---|---|
| MX243197-1PC2570 PRIMARY | Babcock & Wilcox Co (USA) |
| MX262974PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX243973PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX253092PC2570 PRIMARY | Babcock & Wilcox Co (USA) |
| MX261177PC2396 PRIMARY | Babcock & Wilcox Co (USA) |
| MX242982-4PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX260157-3PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX260376PC1311 PRIMARY | Babcock & Wilcox Co (USA) |
| MX243874PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX260127-1PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX250705PC2396 PRIMARY | Babcock & Wilcox Co (USA) |
| 3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| 680-50PC1310 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| MX260374PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX250703PC3M33 PRIMARY | Babcock & Wilcox Co (USA) |
| MX242984PC2684 PRIMARY | Babcock & Wilcox Co (USA) |
| MX262976PC1311 PRIMARY | Babcock & Wilcox Co (USA) |
| MX253091PC2570 PRIMARY | Babcock & Wilcox Co (USA) |
| MX260159PC2684 PRIMARY | Babcock & Wilcox Co (USA) |
| MX260129PC1310 PRIMARY | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| CL144S5101-582970PC1311 | 3/2 Design control — primary reference U.S. Government activity |
| CV9S5103-011PC1310 | 3/2 Design control — primary reference U.S. Government activity |
| DD445S5103-72ALT4PC3M33 | 3/2 Design control — primary reference U.S. Government activity |
| CB1S5101-28ALT1PC3M33 | 3/2 Design control — primary reference U.S. Government activity |
| BB61S51-54ALT1PC0 | 3/2 Design control — primary reference U.S. Government activity |
| DD692S5101-28PC2570 | 3/2 Design control — primary reference U.S. Government activity |
| DD445S5103-74PC2570 | 3/2 Design control — primary reference U.S. Government activity |
| CVB41S5103-18PC2396 | 3/2 Design control — primary reference U.S. Government activity |
| CA68S5102-25PC1311 | 3/2 Design control — primary reference U.S. Government activity |
| CV33S5103-335024ALT1PC3M33 | 3/2 Design control — primary reference U.S. Government activity |
| CB1S5101-30ALT2PC2396 | 3/2 Design control — primary reference U.S. Government activity |
| CL55S51-89PC2684 | 3/2 Design control — primary reference U.S. Government activity |
| CV22S51-89PC2684 | 3/2 Design control — primary reference U.S. Government activity |
| CA68S5102-23PC3M33 | 3/2 Design control — primary reference U.S. Government activity |
| CL144S5101-582968PC3M33 | 3/2 Design control — primary reference U.S. Government activity |
| CVB41S5103-16ALT4PC3M33 | 3/2 Design control — primary reference U.S. Government activity |
| CA139S5103-525889PC2270 | 3/2 Design control — primary reference U.S. Government activity |
| CA68S5102-89ALT2PC1311 | 3/2 Design control — primary reference U.S. Government activity |
| CV9S5103-160PC1310 | 3/2 Design control — primary reference U.S. Government activity |
| CL103S5101-63831PC2684 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3456-00-332-0376 is a Mandrel,roller Tube Expander, manufactured by Babcock & Wilcox Co, classified under FSC 3456, Cutting and Forming Tools for Secondary Metalworking Machinery. Status: active.
NSN 3456-00-332-0376 has 26 manufacturer part numbers on file: MX243197-1PC2570 (Babcock & Wilcox Co), MX262974PC3M33 (Babcock & Wilcox Co), MX243973PC3M33 (Babcock & Wilcox Co), MX253092PC2570 (Babcock & Wilcox Co), MX261177PC2396 (Babcock & Wilcox Co) and 21 more.
3 possible matches (shared part number, not a government interchangeability claim): 5306-00-619-5202, 3120-00-661-8439, 5970-00-665-2903. Verify interchangeability with system specifications before substitution.
Key specifications for MX243197-1PC2570: Hand Turning Rod: NOT INCLUDED; Square Shank Length: 0.750 INCHES NOMINAL IN; Drive Type: SQUARE; Overall Length: 5.375 INCHES NOMINAL IN. 6 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.