The Bit,screwdriver, cataloged under National Stock Number 5120-01-428-8311, 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 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5120-01-428-8311 |
| Primary Part Number | SDM253IRC |
| 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 | 3 |
| Drive Shank Type | HEXAGON |
| Shank Width Across Wrench Flats | 0.250 INCHES NOMINAL IN |
| Features Provided | MANUAL TOOL AND ANTI-CAM-OUT RIBS ON TIP |
| Tip Type | POZIDRIVE CROSS |
| Specification/standard Data | 05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 2 TYPE AND 3 CLASS |
| 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 |
|---|---|
| SDM253IRC | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| SDM253IRC | Aertekno S.r.l. (ITA) |
| Reference | Meaning |
|---|---|
| B107.600 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| B107.26 | 5/9 Secondary reference The American Society of Mechanical Engineers |
| SDM253IRA | 5/9 Secondary reference Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| B107.600 TY2CL3 | 5/1 Secondary reference U.S. Government activity |
| B107.26 TY3 | 5/9 Secondary reference U.S. Government activity |
NSN 5120-01-428-8311 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 5120-01-428-8311 has 2 manufacturer part numbers on file: SDM253IRC (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), SDM253IRC (Aertekno S.r.l.).
5 possible matches (shared part number, not a government interchangeability claim): 5120-01-428-8360, 5120-01-430-5759, 5120-01-529-9327. Verify interchangeability with system specifications before substitution.
Key specifications for SDM253IRC: Tip Size Designation: 3; Drive Shank Type: HEXAGON; Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN; Features Provided: MANUAL TOOL AND ANTI-CAM-OUT RIBS ON TIP. 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.