The Washer,key, cataloged under National Stock Number 5310-01-517-7799, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-517-7799 |
| Primary Part Number | 596-7410506-44 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Internal Straight Key Width | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.870 INCHES NOMINAL IN |
| Overall Distance Including Keys | 3.880 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.630 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| External Straight Key Width | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| External Key Quantity | 4 |
| Material | NICKEL ALLOY AND COPPER ALLOY OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 2.060 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 |
|---|---|
| 596-7410506-44 | Naval Sea Systems Command (USA) |
| 596-7410504-30 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7410506 | D/9 Drawing number reference only Naval Sea Systems Command |
| B434-5219-44 | 3/2 Design control — primary reference U.S. Government activity |
| B434-5217-30 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-517-7799 is a Washer,key, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-517-7799 has 2 manufacturer part numbers on file: 596-7410506-44 (Naval Sea Systems Command), 596-7410504-30 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 5325-01-518-0297, 3040-01-686-4010. Verify interchangeability with system specifications before substitution.
Key specifications for 596-7410506-44: Internal Straight Key Width: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.870 INCHES NOMINAL IN; Overall Distance Including Keys: 3.880 INCHES NOMINAL 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.