The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-274-2305, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Dynamics Mission Systems, Inc. Dba Gdms. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-274-2305 |
| Primary Part Number | 203-20961-248 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | General Dynamics Mission Systems, Inc. Dba Gdms |
| Status | CANCELLED |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Minimum Yield Strength | 30000 POUNDS PER SQUARE INCH LBS |
| Head Style | FLAT CHAMFER |
| Width Across Flats | 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN |
| Head Height | 0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 1936 SERIES |
| Hardness Rating | 80.0 ROCKWELL B MINIMUM OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 32 |
| Thread Class | 3A A |
| Thread Length | 0.875 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Internal Drive Style | HEXAGON |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 203-20961-248 | General Dynamics Mission Systems, Inc. Dba Gdms (USA) |
| 203-20961-248 | Motorola Inc. Dba Integrated Information Systems Group (USA) |
| 291-814SS | Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA) |
| 637441PC11 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| MS35461-5 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 291-814SS | Honeywell Intl Inc Defense Avionics Systems (USA) |
NSN 5305-00-274-2305 is a Screw,cap,socket Head, manufactured by General Dynamics Mission Systems, Inc. Dba Gdms, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-274-2305 has 6 cross-referenced part numbers: 203-20961-248 (General Dynamics Mission Systems, Inc. Dba Gdms), 203-20961-248 (Motorola Inc. Dba Integrated Information Systems Group), 291-814SS (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), 637441PC11 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MS35461-5 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There is 1 known substitute for 5305-00-274-2305: 5305-00-988-7605. Verify interchangeability with system specifications before substitution.
Key specifications for 203-20961-248: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Diameter: 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND; Fastener Length: 0.875 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-274-2305 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.