The Screw,lag, cataloged under National Stock Number 5305-00-177-5624, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-177-5624 |
| Primary Part Number | FFB561 |
| Item Name | Screw,lag |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | CANCELLED |
| Shoulder Length | 0.312 INCHES MINIMUM FIRST SHOULDER IN |
| Head Style | HEXAGON |
| Hardness Rating | 60.0 ROCKWELL B MINIMUM OVERALL |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 STYLE AND B GRADE |
| Head Height | 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN |
| Nonmachine Nominal Thread Diameter | 0.625 INCHES IN |
| Width Between Flats | 0.906 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Fastener Length | 5.000 INCHES NOMINAL IN |
| Nonmachine Thread Style | GIMLET POINT (TYPE A, AB OR BA) |
| Surface Treatment Document and Classification | ASTM A153-60 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material | STEEL OVERALL |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Shoulder Diameter | 0.605 INCHES MINIMUM AND 0.642 INCHES MAXIMUM FIRST SHOULDER IN |
| Material Document and Classification | FF-B-561,GRADE B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFB561 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| MS16992-606 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| FF-B-561D | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5305-00-177-5624 is a Screw,lag, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-177-5624 has 3 cross-referenced part numbers: FFB561 (Federal Specifications Promulgated by General Services Administration Washington DC), MS16992-606 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-B-561D (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 3 known substitutes for 5305-00-177-5624: 5305-00-406-5199, 5305-00-407-6543, 5305-00-449-2240. Verify interchangeability with system specifications before substitution.
Key specifications for FFB561: Shoulder Length: 0.312 INCHES MINIMUM FIRST SHOULDER IN; Head Style: HEXAGON; Hardness Rating: 60.0 ROCKWELL B MINIMUM OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND 1 STYLE AND B GRADE. 16 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-177-5624 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.