The Washer,lock, cataloged under National Stock Number 5310-01-369-6708, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-369-6708 |
| Primary Part Number | LWSS 5/8 INT. |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 1.045 INCHES MINIMUM AND 1.071 INCHES MAXIMUM IN |
| Material Thickness | 0.042 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.640 INCHES MINIMUM AND 0.663 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 |
|---|---|
| LWSS 5/8 INT. PRIMARY | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| M3463-2185A PC10 | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| Reference | Meaning |
|---|---|
| M3463-2185A | D/9 Drawing number reference only Derbyshire Machine & Tool Co |
| M3463-2185A PC10 | 5/9 Secondary reference Derbyshire Machine & Tool Co |
NSN 5310-01-369-6708 is a Washer,lock, manufactured by Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-369-6708 has 2 manufacturer part numbers on file: LWSS 5/8 INT. (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc), M3463-2185A PC10 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-511-5505, 4820-01-511-5536. Verify interchangeability with system specifications before substitution.
Key specifications for LWSS 5/8 INT.: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 1.045 INCHES MINIMUM AND 1.071 INCHES MAXIMUM IN; Material Thickness: 0.042 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN; Material: STEEL CORROSION RESISTING 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.