The Wrench,open End Box, cataloged under National Stock Number 5120-00-277-2697, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-277-2697 |
| Primary Part Number | BLK4144 |
| Item Name | Wrench,open End Box |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Martin Sprocket and Gear Inc |
| Status | ACTIVE |
| Supplementary Features | HEAD THICKNESS 0.906 IN. (PLUS/MINUS 0.016 IN.) IN |
| Nondefinitive Spec/std Data | 2 TYPE AND 2 CLASS AND D STYLE |
| Style Designator | FLARE NUT SINGLE END |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Surface Treatment | PHOSPHATE OVERALL |
| Wrenching Surface Size | 1.375 INCHES NOMINAL SINGLE END IN |
| Material | STEEL OVERALL |
| Specification/standard Data | 0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| BLK4144 | Martin Sprocket and Gear Inc (USA) |
| GGG-W-636 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| AS4167 | Sae International Dba Sae International (USA) |
| GGG-W-636 TY14 | General Services Administration Federal Supply Service (USA) |
| AS4167 TY2CL2STD | General Services Administration Federal Supply Service (USA) |
| 768389 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| A-A-1350 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| AS4167 | Society of Automotive Engineers Inc (USA) |
| 4144 | Martin Sprocket and Gear Inc (USA) |
NSN 5120-00-277-2697 is a Wrench,open End Box, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-277-2697 has 9 cross-referenced part numbers: BLK4144 (Martin Sprocket and Gear Inc), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC), AS4167 (Sae International Dba Sae International), GGG-W-636 TY14 (General Services Administration Federal Supply Service), AS4167 TY2CL2STD (General Services Administration Federal Supply Service) and 4 more.
There are 12 known substitutes for 5120-00-277-2697: 4820-00-213-7670, 5120-00-224-3103, 5120-00-224-3104 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for BLK4144: Supplementary Features: HEAD THICKNESS 0.906 IN. (PLUS/MINUS 0.016 IN.) IN; Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS AND D STYLE; Style Designator: FLARE NUT SINGLE END; Overall Length: 12.500 INCHES MINIMUM IN. 9 total characteristics are documented in the Federal Logistics Information System.