The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-978-9377, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 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 | 5305-00-978-9377 |
| Primary Part Number | FF-S-86 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | CANCELLED |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Thread Class | 3A A |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.244 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 6 TYPE |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Width Across Flats | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Head Height | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Fastener Length | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Quantity Per Inch | 20 |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FF-S-86 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 14847 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 14784 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 855401 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA) |
| MS16997-57 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 5305009789377 | E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 60348 | Wheelabrator-Frye Inc Balcrank Products (USA) |
| 906J410H13 | Zf Industrieantriebe Witten Gmbh (DEU) |
| X74222 PIECE-11 | Spx Flow Us, Llc Dba Spx Valves & Controls (USA) |
NSN 5305-00-978-9377 is a Screw,cap,socket Head, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-978-9377 has 9 cross-referenced part numbers: FF-S-86 (Federal Specifications Promulgated by General Services Administration Washington DC), 14847 (Zf Industrieantriebe Witten Gmbh), 14784 (Zf Industrieantriebe Witten Gmbh), 855401 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament), MS16997-57 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.
There are 12 known substitutes for 5305-00-978-9377: 5365-00-089-3400, 9540-00-231-2912, 5935-00-257-9597 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FF-S-86: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Class: 3A A; Surface Treatment: CADMIUM AND CHROMATE OVERALL; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-978-9377 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.