The Washer,key, cataloged under National Stock Number 5310-01-669-2826, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-669-2826 |
| Primary Part Number | MS172299 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS2481 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 3.204 INCHES MINIMUM AND 3.234 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.781 INCHES MINIMUM AND 2.801 INCHES MAXIMUM IN |
| Material Thickness | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN |
| External Key Quantity | 17 |
| Internal Prebent Key Length | 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| External Prebent Key Width | 0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 2.281 INCHES MINIMUM AND 2.306 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 |
NSN 5310-01-669-2826 is a Washer,key, manufactured by Sae International Dba Sae International, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-669-2826 has 2 manufacturer part numbers on file: MS172299 (Sae International Dba Sae International), MS172299 (Cuda II, Inc Div Aerospace Products Company).
Key specifications for MS172299: Surface Treatment Document and Classification: AMS2481 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN; Overall Distance Including Keys: 3.204 INCHES MINIMUM AND 3.234 INCHES MAXIMUM IN; Style Designator: KEY. 13 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.