The Washer,lock, cataloged under National Stock Number 5310-01-012-2764, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-012-2764 |
| Primary Part Number | 300480 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.485 INCHES NOMINAL0.485 INCHES NOMINAL IN |
| Material Thickness | 0.064 INCHES NOMINAL0.064 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.250 INCHES NOMINAL0.250 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 |
|---|---|
| 300480 PRIMARY | Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team (USA) |
| Reference | Meaning |
|---|---|
| 300480 | C/1 Advisory reference — outside the item-of-supply concept Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 024-021584PC1 | C/1 Advisory reference — outside the item-of-supply concept Pentair Valves & Controls Us Lp Div Pentair Flow Control |
NSN 5310-01-012-2764 is a Washer,lock, manufactured by Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-012-2764 has 1 manufacturer part number on file: 300480 (Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-144-2394, 5330-01-287-2274. Verify interchangeability with system specifications before substitution.
Key specifications for 300480: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.485 INCHES NOMINAL0.485 INCHES NOMINAL IN; Material Thickness: 0.064 INCHES NOMINAL0.064 INCHES NOMINAL IN; Material: STEEL OVERALL. 5 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.