The Magnetic Inspection Unit,portabl, cataloged under National Stock Number 6635-01-367-2187, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Illinois Tool Works, Inc. Div Magnaflux. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6635-01-367-2187 |
| Primary Part Number | 631592 |
| Item Name | Magnetic Inspection Unit,portabl |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Illinois Tool Works, Inc. Div Magnaflux |
| Status | ACTIVE |
| Automatic Cycle Timer | NOT INCLUDED |
| Functional Description | QUANTITATIVE QUALITY INDICATOR ARTIFICIAL FLAW SHIM FOR MAGNETIC PARTICLE INSPECTION |
| 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 |
|---|---|
| 519631 | Illinois Tool Works, Inc. Div Magnaflux (USA) |
| 631592 PRIMARY | Illinois Tool Works, Inc. Div Magnaflux (USA) |
| CX4-230 PRIMARY | Illinois Tool Works, Inc. Div Magnaflux (USA) |
| Reference | Meaning |
|---|---|
| 6635PL1831857 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| KSC-4-230 | 3/9 Design control — primary reference Illinois Tool Works, Inc. Div Magnaflux |
NSN 6635-01-367-2187 is a Magnetic Inspection Unit,portabl, manufactured by Illinois Tool Works, Inc. Div Magnaflux, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-367-2187 has 3 manufacturer part numbers on file: 519631 (Illinois Tool Works, Inc. Div Magnaflux), 631592 (Illinois Tool Works, Inc. Div Magnaflux), CX4-230 (Illinois Tool Works, Inc. Div Magnaflux).
1 possible match (shared part number, not a government interchangeability claim): 6720-01-585-4481. Verify interchangeability with system specifications before substitution.
Key specifications for 631592: Overall Height: 0.002 INCHES NOMINAL IN; Overall Length: 0.750 INCHES NOMINAL IN; Overall Width: 0.750 INCHES NOMINAL IN; Automatic Cycle Timer: NOT INCLUDED. 2 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.