NSN 5310-01-663-0838 · NIIN 016630838 · Part number ML6400000A20000
Fastenal Company Dba Fastenal Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0Y3H3
Government record, cited
NSN 5310-01-663-0838 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-663-0838. Manufacturer of record part number: ML6400000A20000.
Also searched as5310-01-663-0838 ·
5310016630838 ·
NIIN 016630838 ·
01-663-0838 ·
FSC 5310 Nuts and Washers · CAGE 0Y3H3 · ML6400000A20000 · 7951190220
Material Thickness: 2.05 MILLIMETERS MINIMUM AND 2.35 MILLIMETERS MAXIMUM MM
Surface Treatment: PASSIVATE OVERALL
Material: STEEL CORROSION RESISTING OVERALL
Hole Diameter: 10.2 MILLIMETERS MINIMUM AND 10.7 MILLIMETERS MAXIMUM MM
2 manufacturer part numbers on file
Identification
NSN: 5310-01-663-0838
NIIN: 016630838
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: ML6400000A20000
Manufacturer: Fastenal Company Dba Fastenal Co
General Description
The Washer,lock, cataloged under National Stock Number 5310-01-663-0838, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 6 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-663-0838
Primary Part Number
ML6400000A20000
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Fastenal Company Dba Fastenal Co
Status
ACTIVE
Style Designator
SPLIT HELICAL-RIGHT HAND
Outside Diameter
18.1 MILLIMETERS NOMINAL MM
Material Thickness
2.05 MILLIMETERS MINIMUM AND 2.35 MILLIMETERS MAXIMUM MM
Surface Treatment
PASSIVATE OVERALL
Material
STEEL CORROSION RESISTING OVERALL
Hole Diameter
10.2 MILLIMETERS MINIMUM AND 10.7 MILLIMETERS MAXIMUM MM
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-663-0838?
NSN 5310-01-663-0838 is a Washer,lock, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-663-0838?
NSN 5310-01-663-0838 has 2 manufacturer part numbers on file: 7951190220 (Grove U.s. Llc Dba Grove Us Llc), ML6400000A20000 (Fastenal Company Dba Fastenal Co).
What are the specifications of ML6400000A20000?
Key specifications for ML6400000A20000: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 18.1 MILLIMETERS NOMINAL MM; Material Thickness: 2.05 MILLIMETERS MINIMUM AND 2.35 MILLIMETERS MAXIMUM MM; Special Features: NOMINAL SIZE: M10. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-663-0838 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.