The Washer,key, cataloged under National Stock Number 5310-00-779-6250, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ameridrives International Llc Dba Ameridrives International Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-779-6250 |
| Primary Part Number | 100233-5 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ameridrives International Llc Dba Ameridrives International Llc |
| Status | ACTIVE |
| External Straight Key Length | 0.313 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.750 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 6357 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.125 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| External Straight Key Width | 0.250 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 8735 OVERALL |
| Hole Diameter | 0.781 INCHES NOMINAL 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 |
|---|---|
| 100233-5 PRIMARY | Ameridrives International Llc Dba Ameridrives International Llc (USA) |
| Reference | Meaning |
|---|---|
| 100233-5 | 5/9 Secondary reference Zurn Industries Inc |
NSN 5310-00-779-6250 is a Washer,key, manufactured by Ameridrives International Llc Dba Ameridrives International Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-779-6250 has 1 manufacturer part number on file: 100233-5 (Ameridrives International Llc Dba Ameridrives International Llc).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-528-2293. Verify interchangeability with system specifications before substitution.
Key specifications for 100233-5: External Straight Key Length: 0.313 INCHES NOMINAL IN; Overall Distance Including Keys: 1.750 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: AMS 6357 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 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.