The Screwdriver Attachment,socket Wr, cataloged under National Stock Number 5120-01-256-9186, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Williams J H Industrial Products Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-256-9186 |
| Primary Part Number | MA-10-3S |
| Item Name | Screwdriver Attachment,socket Wr |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Williams J H Industrial Products Inc |
| Status | ACTIVE |
| Drive Surface Size | 0.250 INCHES NOMINAL SINGLE END IN |
| Style Designator | FLAT (SLOTTED) |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Blade Length | 1.188 INCHES NOMINAL IN |
| Features Provided | MANUAL TOOL |
| Tip Width | 0.281 INCHES NOMINAL IN |
| Wrenching Surface Shape | FLAT (SLOTTED) SINGLE END EXTERNAL |
| Surface Treatment | CHROMIUM DRIVE SURFACE |
| Surface Treatment | OXIDE BIT |
| Tip Thickness | 0.045 INCHES NOMINAL IN |
| 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 |
|---|---|
| MA-10-3S | Williams J H Industrial Products Inc (USA) |
| 2828143-1 | Lockheed Martin Corporation Div Rms - Manassas (USA) |
| Reference | Meaning |
|---|---|
| 5120-01-256-9186 | 3/2 Design control — primary reference U.S. Government activity |
| MA10-3S | 5/9 Secondary reference Trw Inc Hand Tools Div Trw Industrial Products Group |
NSN 5120-01-256-9186 is a Screwdriver Attachment,socket Wr, manufactured by Williams J H Industrial Products Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-256-9186 has 2 manufacturer part numbers on file: MA-10-3S (Williams J H Industrial Products Inc), 2828143-1 (Lockheed Martin Corporation Div Rms - Manassas).
Key specifications for MA-10-3S: Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Style Designator: FLAT (SLOTTED); Overall Length: 2.234 INCHES NOMINAL IN; Outside Diameter: 0.625 INCHES NOMINAL IN. 11 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.