The Washer,key, cataloged under National Stock Number 5310-01-157-5667, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-157-5667 |
| Primary Part Number | 3012339 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Internal Straight Key Width | 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 1.121 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-P-16232 FED STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Distance Including Keys | 3.147 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-624,TYPE D,GR 1,CL C FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.531 INCHES MINIMUM AND 2.551 INCHES MAXIMUM IN |
| Material Thickness | 0.156 INCHES NOMINAL IN |
| External Straight Key Width | 0.214 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN |
| External Key Quantity | 17 |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 4140 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 2.010 INCHES MINIMUM AND 2.020 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 |
|---|---|
| 3012339 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5310-01-157-5667 is a Washer,key, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-157-5667 has 1 manufacturer part number on file: 3012339 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 3012339: Internal Straight Key Width: 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 1.121 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-P-16232 FED STD SINGLE TREATMENT RESPONSE OVERALL; Overall Distance Including Keys: 3.147 INCHES NOMINAL IN. 14 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.