The Key,socket Head Screw, cataloged under National Stock Number 5120-01-367-3245, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5120-01-367-3245 |
| Primary Part Number | MS20A |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | CANCELLED |
| Wrenching Surface Size | 0.183 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | L-HANDLE |
| Specification/standard Data | 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Wrenching Surface Shape | SPLINE BOTH ENDS EXTERNAL |
| Wrenching Surface Flute Quantity | 6 |
| Material | STEEL OVERALL |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MS20A | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| B18.3 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| MS20 | 5/9 Secondary reference Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
NSN 5120-01-367-3245 is a Key,socket Head Screw, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: cancelled.
NSN 5120-01-367-3245 has 1 manufacturer part number on file: MS20A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-728-9594. Verify interchangeability with system specifications before substitution.
Key specifications for MS20A: Wrenching Surface Size: 0.183 INCHES NOMINAL BOTH ENDS IN; Style Designator: L-HANDLE; Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Wrenching Surface Shape: SPLINE BOTH ENDS EXTERNAL. 6 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.
NSN 5120-01-367-3245 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.