The Washer,key, cataloged under National Stock Number 5310-00-910-0103, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Textron Lycoming Inc Williamsport Plant. Government technical data includes 10 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-910-0103 |
| Primary Part Number | 74203 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Textron Lycoming Inc Williamsport Plant |
| Status | ACTIVE |
| Hole Diameter | 2.020 INCHES MINIMUM AND 2.040 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5040 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5042 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5044 ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 1010 OVERALL |
| Internal Key Quantity | 2 |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Internal Prebent Key Length | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Outside Diameter | 3.180 INCHES MINIMUM AND 3.200 INCHES MAXIMUM IN |
| Internal Prebent Key Width | 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Distance From Centerline to Inside of Prebent Key | 1.177 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN |
| Hardness Rating | 67.0 ROCKWELL SUPERFICIAL 30-T MINIMUM AND 74.0 ROCKWELL SUPERFICIAL 30-T MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-910-0103 is a Washer,key, manufactured by Textron Lycoming Inc Williamsport Plant, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-910-0103 has 2 cross-referenced part numbers: 74203 (Textron Lycoming Inc Williamsport Plant), 74203 (Satair A/s).
There are 4 known substitutes for 5310-00-910-0103: 5815-00-126-8177, 3110-00-275-0068, 3110-01-191-3229 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 74203: Hole Diameter: 2.020 INCHES MINIMUM AND 2.040 INCHES MAXIMUM IN; Material Document and Classification: AMS 5040 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5042 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5044 ASSN STD 1ST MATERIAL RESPONSE OVERALL; Material: STEEL COMP 1010 OVERALL; Internal Key Quantity: 2. 10 total characteristics are documented in the Federal Logistics Information System.