The Crowfoot Attachment Set,socket W, cataloged under National Stock Number 5120-01-656-8997, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5120-01-656-8997 |
| Primary Part Number | BCF-50MNB |
| Item Name | Crowfoot Attachment Set,socket W |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | The Stanley Works Dba Stanley Proto |
| Status | ACTIVE |
| Component Quantity | 10 |
| Specification/standard Data | 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 2 TYPE AND 2 CLASS |
| Nonsupply Items and Quantities | CONTAINS 1 EA CHROME PLATED; 3/8 IN. FEMALE SQ DRIVE; OPEN END TYPE; METRIC SIZES 10, 11, 12, 13, 14, 15, 17, 19, 21 AND 22MM MM |
| 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 |
|---|---|
| BCF-50MNB | The Stanley Works Dba Stanley Proto (USA) |
| Reference | Meaning |
|---|---|
| B107.21 | 5/9 Secondary reference The American Society of Mechanical Engineers |
| B107.21 TY2CL2 | 5/1 Secondary reference U.S. Government activity |
| B107.100 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5120-01-656-8997 is a Crowfoot Attachment Set,socket W, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-656-8997 has 1 manufacturer part number on file: BCF-50MNB (The Stanley Works Dba Stanley Proto).
Key specifications for BCF-50MNB: Component Quantity: 10; Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS; Nonsupply Items and Quantities: CONTAINS 1 EA CHROME PLATED; 3/8 IN. FEMALE SQ DRIVE; OPEN END TYPE; METRIC SIZES 10, 11, 12, 13, 14, 15, 17, 19, 21 AND 22MM MM. 4 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.