NSN 5310-01-623-2521 · NIIN 016232521 · Part number 90965A250
Mcmaster-Carr Supply Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 39428
Government record, cited
NSN 5310-01-623-2521 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-623-2521. Manufacturer of record part number: 90965A250.
Also searched as5310-01-623-2521 ·
5310016232521 ·
NIIN 016232521 ·
01-623-2521 ·
FSC 5310 Nuts and Washers · CAGE 39428 · 90965A250
Thickness: 2.7 MILLIMETERS MINIMUM AND 3.3 MILLIMETERS MAXIMUM MM
Identification
NSN: 5310-01-623-2521
NIIN: 016232521
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 90965A250
Manufacturer: Mcmaster-Carr Supply Co
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-623-2521, 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 7 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
5310-01-623-2521
Primary Part Number
90965A250
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Mcmaster-Carr Supply Co
Status
ACTIVE
Overall Diameter
37.0 MILLIMETERS NOMINAL MM
Cross-Sectional Shape Style
BLANK RECTANGULAR
Peripheral Shape Style
ROUND
Material
STEEL COMP 316 OVERALL
Center Hole Shape Style
ROUND
Hole Diameter
21.0 MILLIMETERS NOMINAL MM
Thickness
2.7 MILLIMETERS MINIMUM AND 3.3 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 5310-01-623-2521?
NSN 5310-01-623-2521 is a Washer,flat, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-623-2521?
NSN 5310-01-623-2521 has 1 manufacturer part number on file: 90965A250 (Mcmaster-Carr Supply Co).
What are the specifications of 90965A250?
Key specifications for 90965A250: Overall Diameter: 37.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: BLANK RECTANGULAR; Special Features: PER MCMASTER CARR PART NUMBER HAS MULTIPLE SOURCES AND OEM COULD NOT BE PROVIDED; Peripheral Shape Style: ROUND. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-623-2521 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.