The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-00-181-6753, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5120-00-181-6753 |
| Primary Part Number | B107.21 |
| Item Name | Crowfoot Attachment,socket Wrenc |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | CANCELLED |
| Surface Treatment | CHROMIUM OVERALL |
| Drive Surface Size | 0.500 INCHES NOMINAL SINGLE END IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS AND C STYLE AND A DESIGN |
| Style Designator | FLARE NUT |
| Material | STEEL OVERALL |
| Drive End Shape | SQUARE SINGLE END INTERNAL |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Specification/standard Data | 0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Opening Width | 1.219 INCHES NOMINAL IN |
| Head Thickness | 0.938 INCHES NOMINAL IN |
| Wrenching Surface Size | 1.625 INCHES NOMINAL SINGLE END IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B107.21 | The American Society of Mechanical Engineers (USA) |
| AS4167 TY1CL1STCDEA | General Services Administration Federal Supply Service (USA) |
| AS4167 | Society of Automotive Engineers Inc (USA) |
| B107.21 TY1CL3STA | General Services Administration Federal Supply Service (USA) |
| 45452 | Utica Tool Co Inc (USA) |
| GGG-C-1507 TY1CL3 | General Services Administration Federal Supply Service (USA) |
| AN8508-26A | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| AN850826B | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| GGG-C-1507 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| B107.21 TY1CL1 | General Services Administration Federal Supply Service (USA) |
| AN8508-26A | Snap on Uk Holdings Ltd T/a Snap on Tools (GBR) |
| AS4167 | Sae International Dba Sae International (USA) |
| AF-52 | Utica Tool Co Inc (USA) |
NSN 5120-00-181-6753 is a Crowfoot Attachment,socket Wrenc, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: cancelled.
NSN 5120-00-181-6753 has 13 cross-referenced part numbers: B107.21 (The American Society of Mechanical Engineers), AS4167 TY1CL1STCDEA (General Services Administration Federal Supply Service), AS4167 (Society of Automotive Engineers Inc), B107.21 TY1CL3STA (General Services Administration Federal Supply Service), 45452 (Utica Tool Co Inc) and 8 more.
There are 12 known substitutes for 5120-00-181-6753: 5120-00-181-6750, 5120-00-181-6752, 5120-00-181-6754 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B107.21: Surface Treatment: CHROMIUM OVERALL; Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND C STYLE AND A DESIGN; Style Designator: FLARE NUT. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5120-00-181-6753 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.