The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-274-7731, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 26 commercial cross-references from 21 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 | 5310-00-274-7731 |
| Primary Part Number | 21056A |
| Item Name | Nut,plain,castellated,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | CANCELLED |
| Nut Style | CASTELLATED, HEXAGON |
| Width Across Flats | 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 20 |
| Thread Class | 3B |
| Thread Direction | RIGHT-HAND |
| Nut Height | 0.448 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN |
| Bearing Surface Type | WASHER FACED |
| Material Document and Classification | SAE ASSN STD 1ST MATERIAL RESPONSE OR SAE ASSN STD 2ND MATERIAL RESPONSE OR SAE ASSN STD 3RD MATERIAL RESPONSE OR SAE ASSN STD 4TH MATERIAL RESPONSE OR AISI ASSN STD 5TH MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 3140 OR STEEL COMP 2330 OR STEEL COMP 4135 OR STEEL COMP 4140 OR STEEL COMP 4037 OVERALL |
| Nominal Thread Size | 0.438 INCHES IN |
| Thread Series | UNF |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21342 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| 72MBS1 | Linde Material Handling North America Corporation (USA) |
| 21056A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 21056 | 0mcc Inc (USA) |
| 72MBS1 | Linde Lift Truck Corp. (USA) |
| 21056A | Cyclone Drill Co (USA) |
| 6D07 | Clark Material Handling Company (USA) |
| 272071 | Mitsubishi Caterpillar Forklift America, Inc (USA) |
| 21056A | Clark Material Handling Company (USA) |
| HM21056A | Clark Equipment Co (USA) |
| L12161 | Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co (USA) |
| 21056A | O K Machinery Div of Motter John C Printing Press Co (USA) |
| 904322 | New Holland Construction (USA) |
| 6D07 | Clark Equipment Co (USA) |
| 21342 | Hyster-Yale Group, Inc. (USA) |
| 21056A PRIMARY | Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA) |
| 21056A PRIMARY | Hoist Liftruck Mfg Inc (USA) |
| 643449 | Sasco Inc Canadian Div |
| 16044 | Celtrac Corp (USA) |
| 1A9673 PRIMARY | Napco International Llc Dba Napco International Inc (USA) |
NSN 5310-00-274-7731 is a Nut,plain,castellated,hexagon, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-274-7731 has 26 cross-referenced part numbers: 21342 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), 72MBS1 (Linde Material Handling North America Corporation), 21056A (Brinkley Technology Group Llc Dba Hercules Manufacturing), 21056 (0mcc Inc), 72MBS1 (Linde Lift Truck Corp.) and 21 more.
There are 12 known substitutes for 5310-00-274-7731: 5998-00-009-7089, 1630-00-093-9628, 5120-00-198-5392 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21056A: Nut Style: CASTELLATED, HEXAGON; Width Across Flats: 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Thread Quantity Per Inch: 20; Thread Class: 3B. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-274-7731 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.