The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-637-0220, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell International, Inc Div Aerospace-Tucson. Government technical data includes 11 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 | 5310-00-637-0220 |
| Primary Part Number | 20501-20 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| Width Across Flats | 0.312 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Thread Series | UNF |
| Thread Quantity Per Inch | 32 |
| Nominal Thread Size | 0.190 INCHES IN |
| Thread Class | 3B |
| Thread Direction | RIGHT-HAND |
| Nut Height | 0.094 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-637-0220 is a Nut,plain,hexagon, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-637-0220 has 3 cross-referenced part numbers: 20501-20 (Honeywell International, Inc Div Aerospace-Tucson), 20501-20 (Allied Signal Inc Aerospace Equipment Systems Eatontown Site), 20501-20 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems).
There is 1 known substitute for 5310-00-637-0220: 4820-01-200-5004. Verify interchangeability with system specifications before substitution.
Key specifications for 20501-20: Width Across Flats: 0.312 INCHES NOMINAL IN; Surface Treatment: CADMIUM OVERALL; Bearing Surface Type: CHAMFERED OR WASHER FACED; Thread Series: UNF. 11 total characteristics are documented in the Federal Logistics Information System.