The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-551-6691, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-551-6691 |
| Primary Part Number | FFB571TYPEA7 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Thread Quantity Per Inch | 10 |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Bearing Surface Type | WASHER FACED |
| Nominal Thread Size | 0.750 INCHES IN |
| Width Across Flats | 1.0450 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN |
| Thread Class | 3B |
| Departure From Cited Designator | AS MODIFIED BY NOMINAL THREAD SIZE AND THREADS PER INCH |
| Nut Height | 0.642 INCHES MINIMUM AND 0.671 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Nondefinitive Spec/std Data | A7 TYPE |
| Material | STEEL OVERALL |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFB571TYPEA7 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| MIL-DTL-1222/TY1GR5 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5310-00-551-6691 is a Nut,plain,hexagon, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-551-6691 has 2 cross-referenced part numbers: FFB571TYPEA7 (Federal Specifications Promulgated by General Services Administration Washington DC), MIL-DTL-1222/TY1GR5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 5 known substitutes for 5310-00-551-6691: 5310-00-012-1932, 5310-00-194-8202, 5306-00-270-9438 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for FFB571TYPEA7: Thread Quantity Per Inch: 10; Thread Series: UNIFIED NATIONAL COARSE (UNC); Bearing Surface Type: WASHER FACED; Nominal Thread Size: 0.750 INCHES IN. 12 total characteristics are documented in the Federal Logistics Information System.