The Setscrew, cataloged under National Stock Number 5305-00-058-9381, 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 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-058-9381 |
| Primary Part Number | MS51977-53 |
| Item Name | Setscrew |
| 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 | CANCELLED |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 20 |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Material | STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Thread Length | 0.625 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Internal Drive Style | HEXAGON |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Style | HEADLESS (SETSCREW) |
| Thread Class | 3A A |
| Thread Direction | RIGHT-HAND |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Point Style | HALF DOG |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS51977-53 PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| FFS103TYPE3STYLE5 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 139707 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| MS51977-53 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 139707 | General Motors Corp (USA) |
| 139707 | General Motors Llc Dba General Motors Llc (USA) |
NSN 5305-00-058-9381 is a Setscrew, 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: cancelled.
NSN 5305-00-058-9381 has 6 cross-referenced part numbers: MS51977-53 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), FFS103TYPE3STYLE5 (Federal Specifications Promulgated by General Services Administration Washington DC), 139707 (Army Weapons Command Attn Amswe-Ree-S), MS51977-53 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 139707 (General Motors Corp) and 1 more.
There are 12 known substitutes for 5305-00-058-9381: 5305-00-013-9703, 5305-00-013-9705, 5305-00-013-9727 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS51977-53: Fastener Length: 0.625 INCHES NOMINAL IN; Width Across Flats: 0.125 INCHES NOMINAL IN; Thread Quantity Per Inch: 20; Surface Treatment Document and Classification: QQ-P-416 TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-058-9381 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.