The Screw,machine, cataloged under National Stock Number 5305-00-455-2550, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 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 | 5305-00-455-2550 |
| Primary Part Number | MS51959-28B |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use |
| Status | ACTIVE |
| Head Diameter | 0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN |
| Departure From Cited Designator | AS MODIFIED BY FINISH |
| Nondefinitive Spec/std Data | 3 TYPE AND 2C STYLE |
| Thread Quantity Per Inch | 32 |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| Screw Material | STEEL CORROSION RESISTING OR STEEL |
| Screw Surface Treatment | OXIDE |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Screw Surface Treatment Document and Classification | MIL-C-13924,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE |
| Screw Material Document and Classification | QQ-S-763,300 SERIES FED SPEC 1ST MATERIAL RESPONSE OR 66,300 SERIES FED STD 1ST MATERIAL RESPONSE OR COMP 16-18 OR 18-8 ASSN STD 2ND MATERIAL RESPONSE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Fastener Length | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Thread Length | 0.199 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Head Style | FLAT COUNTERSUNK |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 10241-28 | Aimtron Systems, Llc (USA) |
| MS51959-28B | O&s Aviation Srl (ITA) |
| 5305PL1573655 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| MS51959-28B PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| MS51959-28B | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| FFS92 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| A17195-025 | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| MS51959-28B | Fastening Products of Lancaster, Inc. (USA) |
| 5305PL1055824 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 639129-347 | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| 10241-28 | Cardion Inc (USA) |
| 418331-28 | Raytheon Company Dba Raytheon (USA) |
NSN 5305-00-455-2550 is a Screw,machine, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-455-2550 has 12 cross-referenced part numbers: 10241-28 (Aimtron Systems, Llc), MS51959-28B (O&s Aviation Srl), 5305PL1573655 (Jednolity Indeks Materialowy - Uniform Material Index), MS51959-28B (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS51959-28B (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 7 more.
There is 1 known substitute for 5305-00-455-2550: 5305-00-763-6963. Verify interchangeability with system specifications before substitution.
Key specifications for MS51959-28B: Head Diameter: 0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN; Departure From Cited Designator: AS MODIFIED BY FINISH; Nondefinitive Spec/std Data: 3 TYPE AND 2C STYLE; Thread Quantity Per Inch: 32. 19 total characteristics are documented in the Federal Logistics Information System.