The Vise Block,pull Tester, cataloged under National Stock Number 6635-01-283-8757, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6635-01-283-8757 |
| Primary Part Number | ATI520CT8 |
| Item Name | Vise Block,pull Tester |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| ATI520CT8 PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| ATI520CT8 | 3/9 Design control — primary reference Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division |
| AT520CT-8 | 5/9 Secondary reference Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division |
NSN 6635-01-283-8757 is a Vise Block,pull Tester, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-283-8757 has 1 manufacturer part number on file: ATI520CT8 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
Key specifications for ATI520CT8: End Item Identification: 6635-00-864-3511. 0 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.