The Bit,screwdriver, cataloged under National Stock Number 5120-01-397-2948, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-397-2948 |
| Primary Part Number | ATIT2A1 |
| Item Name | Bit,screwdriver |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Tip Size Designation | 1/4 |
| Drive Shank Type | HEXAGON |
| Shank Width Across Wrench Flats | 0.250 INCHES NOMINAL IN |
| Tip Type | TORQUE SET CROSS |
| Specification/standard Data | 80205-NAS-14191 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| 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 |
|---|---|
| ATIT2A1 PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| T2A1 | 5/9 Secondary reference Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division |
| NASM14191 | 3/1 Design control — primary reference U.S. Government activity |
| B107.30 | 5/1 Secondary reference The American Society of Mechanical Engineers |
NSN 5120-01-397-2948 is a Bit,screwdriver, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-397-2948 has 1 manufacturer part number on file: ATIT2A1 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
Key specifications for ATIT2A1: Tip Size Designation: 1/4; Drive Shank Type: HEXAGON; Overall Length: 1.000 INCHES NOMINAL IN; Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN. 5 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.