The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-078-4446, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rockwell Collins, Inc. Dba Rc Displays Systems. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-078-4446 |
| Primary Part Number | 29268-1 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Rockwell Collins, Inc. Dba Rc Displays Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-13924,CL4 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Class | 2A A |
| Surface Treatment | PASSIVATE AND OXIDE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| First Diameter From Head | 0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| Fastener Length | 0.385 INCHES NOMINAL IN |
| Countersink Angle | 98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Thread Length | 0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Diameter | 0.225 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Quantity Per Inch | 40 |
| Head Style | FLAT COUNTERSUNK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 29268-1 PRIMARY | Rockwell Collins, Inc. Dba Rc Displays Systems (USA) |
NSN 5305-01-078-4446 is a Screw,externally Relieved Body, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-078-4446 has 1 cross-referenced part number: 29268-1 (Rockwell Collins, Inc. Dba Rc Displays Systems).
There are 3 known substitutes for 5305-01-078-4446: 2910-00-358-5515, 5310-01-271-3297, 5330-01-414-8458. Verify interchangeability with system specifications before substitution.
Key specifications for 29268-1: Surface Treatment Document and Classification: QQ-P-35,TYPE 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-13924,CL4 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Class: 2A A. 18 total characteristics are documented in the Federal Logistics Information System.