The Washer,key, cataloged under National Stock Number 5310-00-285-9068, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-285-9068 |
| Primary Part Number | 88993 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Internal Straight Key Width | 0.052 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN |
| Material Thickness | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| External Straight Key Width | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| External Key Quantity | 8 |
| Material | STEEL COMP 302 OR STEEL COMP 303 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 88993 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5310-00-285-9068 is a Washer,key, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-285-9068 has 1 manufacturer part number on file: 88993 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 5815-00-408-1049. Verify interchangeability with system specifications before substitution.
Key specifications for 88993: Internal Straight Key Width: 0.052 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN; Style Designator: KEY. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.