The Nut,plain,square, cataloged under National Stock Number 5310-00-639-1089, is classified within Federal Supply Class 5310 (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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-639-1089 |
| Primary Part Number | FF-N-836 |
| Item Name | Nut,plain,square |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Width Across Flats | 0.438 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 20 |
| Bearing Surface Type | FLAT |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Nut Height | 0.188 INCHES NOMINAL IN |
| Nut Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 1 TYPE AND 3 STYLE AND C GRADE |
| Thread Class | 2B |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FF-N-836 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| FF-N-836 TY1ST3GRC | General Services Administration Federal Supply Service (USA) |
| B18.6.3 | American National Standards Institute Incorporated Dba American National Standards Institute (USA) |
| BM12280-186A12 | Demarkus Corp Refrigeration Engineering Corp (USA) |
| MIL-S-933 TYB | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 14017 | Demarkus Corp Refrigeration Engineering Corp (USA) |
NSN 5310-00-639-1089 is a Nut,plain,square, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-639-1089 has 6 cross-referenced part numbers: FF-N-836 (Federal Specifications Promulgated by General Services Administration Washington DC), FF-N-836 TY1ST3GRC (General Services Administration Federal Supply Service), B18.6.3 (American National Standards Institute Incorporated Dba American National Standards Institute), BM12280-186A12 (Demarkus Corp Refrigeration Engineering Corp), MIL-S-933 TYB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There are 9 known substitutes for 5310-00-639-1089: 5841-00-090-6366, 5306-00-208-3822, 3010-00-342-4798 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for FF-N-836: Width Across Flats: 0.438 INCHES NOMINAL IN; Thread Quantity Per Inch: 20; Bearing Surface Type: FLAT; Nominal Thread Size: 0.250 INCHES IN. 11 total characteristics are documented in the Federal Logistics Information System.