The Washer,lock, cataloged under National Stock Number 5310-00-121-8407, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Brp Us Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-121-8407 |
| Primary Part Number | 306470 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Brp Us Inc |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.591 INCHES MAXIMUM IN |
| Material Thickness | 0.078 INCHES MINIMUM IN |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Hole Diameter | 0.319 INCHES MINIMUM 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 |
|---|---|
| 306470 PRIMARY | Brp Us Inc (USA) |
| ZB0306470 | Zodiac Milpro Australia Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 306470 | 5/9 Secondary reference U.S. Government activity |
| 306470 | C/1 Advisory reference — outside the item-of-supply concept Evinrude Motors Product Group of Outboard Marine Corp |
| 306470 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 306470 | 5/9 Secondary reference Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors |
NSN 5310-00-121-8407 is a Washer,lock, manufactured by Brp Us Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-121-8407 has 2 manufacturer part numbers on file: 306470 (Brp Us Inc), ZB0306470 (Zodiac Milpro Australia Pty Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-347-2415. Verify interchangeability with system specifications before substitution.
Key specifications for 306470: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.591 INCHES MAXIMUM IN; Material Thickness: 0.078 INCHES MINIMUM IN; Material: STEEL COMP 302 OR STEEL COMP 304 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.