The Square,combination, cataloged under National Stock Number 5210-01-661-6743, is classified within Federal Supply Class 5210 (Measuring Tools, Craftsmen's) of the Measuring Tools group. The manufacturer of record is Fowler Fred V Co Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5210-01-661-6743 |
| Primary Part Number | 52-375-012 |
| Item Name | Square,combination |
| FSC / FSG | 5210 / 52 — Measuring Tools, Craftsmen's |
| Manufacturer | Fowler Fred V Co Inc |
| Status | ACTIVE |
| Blade Edge Smallest Graduation Unit | 1/100 INCH AND 1/64 INCH AND 1/50 INCH AND 1/32 INCH IN |
| Protractor Head | INCLUDED |
| Center Head | INCLUDED |
| Blade Length | 12.000 INCHES NOMINAL IN |
| Reversibility | REVERSIBLE |
| Material | IRON CAST SQUARE/MITER HEAD |
| Square/miter Head Scriber | INCLUDED |
| 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 |
|---|---|
| 52-375-012 PRIMARY | Fowler Fred V Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 11A7000242 | 7/2 Vendor item drawing reference Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
NSN 5210-01-661-6743 is a Square,combination, manufactured by Fowler Fred V Co Inc, classified under FSC 5210, Measuring Tools, Craftsmen's. Status: active.
NSN 5210-01-661-6743 has 1 manufacturer part number on file: 52-375-012 (Fowler Fred V Co Inc).
Key specifications for 52-375-012: Blade Edge Smallest Graduation Unit: 1/100 INCH AND 1/64 INCH AND 1/50 INCH AND 1/32 INCH IN; Protractor Head: INCLUDED; Center Head: INCLUDED; Blade Length: 12.000 INCHES NOMINAL IN. 7 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.