The Washer,key, cataloged under National Stock Number 5310-00-655-5861, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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 | 5310-00-655-5861 |
| Primary Part Number | 538888 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| External Straight Key Width | 0.230 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OVERALL |
| Outside Diameter | 4.295 INCHES MINIMUM AND 4.305 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-18729,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hole Diameter | 3.980 INCHES NOMINAL IN |
| Overall Distance Including Keys | 4.560 INCHES NOMINAL IN |
| External Key Quantity | 1 |
| Style Designator | KEY |
| Material Thickness | 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 538888 | Beta Shim Co. Dba Beta Shim Co Div Beta Shim Company (USA) |
| 538888 | Hartford Aircraft Products, Inc (USA) |
| 538888 | Connecticut Aircraft Products, Inc (USA) |
| 538888 | Enjet Aero Manchester Llc (USA) |
| 538888 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5310-00-655-5861 is a Washer,key, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-655-5861 has 5 cross-referenced part numbers: 538888 (Beta Shim Co. Dba Beta Shim Co Div Beta Shim Company), 538888 (Hartford Aircraft Products, Inc), 538888 (Connecticut Aircraft Products, Inc), 538888 (Enjet Aero Manchester Llc), 538888 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
There is 1 known substitute for 5310-00-655-5861: 5930-00-469-5819. Verify interchangeability with system specifications before substitution.
Key specifications for 538888: Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM; External Straight Key Width: 0.230 INCHES MAXIMUM IN; Material: STEEL COMP 4130 OVERALL; Outside Diameter: 4.295 INCHES MINIMUM AND 4.305 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.