The Screwdriver Attachment,socket Wr, cataloged under National Stock Number 5120-01-437-3733, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5120-01-437-3733 |
| Primary Part Number | TMAM3E |
| Item Name | Screwdriver Attachment,socket Wr |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Drive Surface Size | 0.250 INCHES NOMINAL SINGLE END IN |
| Wrenching Surface Size | 3.0 MILLIMETERS NOMINAL SINGLE END MM |
| Style Designator | HEXAGON |
| Features Provided | MANUAL TOOL AND REPLACEABLE BIT |
| Wrenching Surface Shape | HEXAGON SINGLE END EXTERNAL |
| Surface Treatment | CHROMIUM DRIVE SURFACE |
| Surface Treatment | CHROMATE ZINC BIT |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| TMAM3E PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| TMAM3E | Snap-on Tools (australia) Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| TMAM3 | 5/9 Secondary reference Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| 5120-01-437-3733 | 5/9 Secondary reference U.S. Government activity |
NSN 5120-01-437-3733 is a Screwdriver Attachment,socket Wr, 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 5120-01-437-3733 has 2 manufacturer part numbers on file: TMAM3E (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), TMAM3E (Snap-on Tools (australia) Pty Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-661-6656. Verify interchangeability with system specifications before substitution.
Key specifications for TMAM3E: Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Wrenching Surface Size: 3.0 MILLIMETERS NOMINAL SINGLE END MM; Style Designator: HEXAGON; Overall Length: 47.8 MILLIMETERS NOMINAL MM. 8 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.