NSN 5310-01-646-3089 · NIIN 016463089 · Part number 90900A030
Mcmaster-Carr Supply Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 39428
Government record, cited
NSN 5310-01-646-3089 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-646-3089. Manufacturer of record part number: 90900A030.
Also searched as5310-01-646-3089 ·
5310016463089 ·
NIIN 016463089 ·
01-646-3089 ·
FSC 5310 Nuts and Washers · CAGE 39428 · 90900A030
Material Thickness: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
Countersink Angle: 82.0 DEGREES NOMINAL
Material: STEEL COMP 403 OR STEEL COMP 405 OR STEEL COMP 410 OVERALL
Hole Diameter: 0.255 INCHES NOMINAL IN
1 manufacturer part number on file
Identification
NSN: 5310-01-646-3089
NIIN: 016463089
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 90900A030
Manufacturer: Mcmaster-Carr Supply Co
General Description
The Washer,lock, cataloged under National Stock Number 5310-01-646-3089, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 6 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.
Technical Specifications
Parameter
Value
NSN
5310-01-646-3089
Primary Part Number
90900A030
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Mcmaster-Carr Supply Co
Status
ACTIVE
Style Designator
COUNTERSINK EXTERNAL TEETH
Outside Diameter
0.454 INCHES NOMINAL IN
Material Thickness
0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
Countersink Angle
82.0 DEGREES NOMINAL
Material
STEEL COMP 403 OR STEEL COMP 405 OR STEEL COMP 410 OVERALL
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 5310-01-646-3089?
NSN 5310-01-646-3089 is a Washer,lock, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-646-3089?
NSN 5310-01-646-3089 has 1 manufacturer part number on file: 90900A030 (Mcmaster-Carr Supply Co).
What are the specifications of 90900A030?
Key specifications for 90900A030: Style Designator: COUNTERSINK EXTERNAL TEETH; Outside Diameter: 0.454 INCHES NOMINAL IN; Material Thickness: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN; Countersink Angle: 82.0 DEGREES NOMINAL. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-646-3089 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.