The Screw,close Tolerance, cataloged under National Stock Number 5305-01-206-7259, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 21 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-206-7259 |
| Primary Part Number | GB510FG4-4 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Thread Length | 0.386 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN |
| Grip Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Material | STEEL COMP H11 OVERALL |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Treatment Document and Classification | NAS 672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837 TY 2 CL 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 6847 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 0.646 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN |
| Head Diameter | 0.464 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 28 |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Head Style | FLAT COUNTERSUNK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| HR204-4-4 | Hi-Shear Corporation (USA) |
| GB510CE4-4 | Northrop Grumman Systems Corporation (USA) |
| PBF1202-4-4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 1202-4-4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| GB510FG4-4 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GB510FG4-4 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| HR204-4-4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 106706T-4-4 | Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA) |
| SC1779-4-4 | Howmet Global Fastening Systems Inc (USA) |
NSN 5305-01-206-7259 is a Screw,close Tolerance, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-206-7259 has 9 cross-referenced part numbers: HR204-4-4 (Hi-Shear Corporation), GB510CE4-4 (Northrop Grumman Systems Corporation), PBF1202-4-4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 1202-4-4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), GB510FG4-4 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 4 more.
There is 1 known substitute for 5305-01-206-7259: 5365-01-269-4454. Verify interchangeability with system specifications before substitution.
Key specifications for GB510FG4-4: Thread Length: 0.386 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN; Grip Length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Thread Class: 3A A; Material: STEEL COMP H11 OVERALL. 21 total characteristics are documented in the Federal Logistics Information System.