The Screw,machine, cataloged under National Stock Number 5305-00-017-5257, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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 | 5305-00-017-5257 |
| Primary Part Number | 175257 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Width Between Flats | 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Screw Material | STEEL |
| Thread Class | 2A A |
| Thread Length | 1.250 INCHES MAXIMUM IN |
| Screw Material Document and Classification | SAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND |
| Head Style | HEXAGON |
| Head Height | 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Hardness Rating | 95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM |
| Thread Quantity Per Inch | 14 |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-017-5257 is a Screw,machine, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-017-5257 has 3 cross-referenced part numbers: 175257 (General Motors Llc Dba General Motors Llc), 175257 (General Motors Corp), 175257 (Army Weapons Command Attn Amswe-Ree-S).
There is 1 known substitute for 5305-00-017-5257: 2530-00-434-6521. Verify interchangeability with system specifications before substitution.
Key specifications for 175257: Fastener Length: 1.250 INCHES NOMINAL IN; Width Between Flats: 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Internal Drive Style: CROSS RECESS TYPE 1; Screw Material: STEEL. 15 total characteristics are documented in the Federal Logistics Information System.