NSN 5310-01-564-9579 · NIIN 015649579 · Part number 91190A550
Mcmaster-Carr Supply Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 39428
Government record, cited
NSN 5310-01-564-9579 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-564-9579. Manufacturer of record part number: 91190A550.
Also searched as5310-01-564-9579 ·
5310015649579 ·
NIIN 015649579 ·
01-564-9579 ·
FSC 5310 Nuts and Washers · CAGE 39428 · 91190A550
Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
Style Designator: SPLIT HELICAL-RIGHT HAND
Outside Diameter: 12.7 MILLIMETERS NOMINAL MM
Material Thickness: 1.9 MILLIMETERS NOMINAL MM
Specification/standard Data: DIN 7980 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Color: BLACK OVERALL
Surface Treatment: OIL OVERALL
Identification
NSN: 5310-01-564-9579
NIIN: 015649579
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 91190A550
Manufacturer: Mcmaster-Carr Supply Co
General Description
The Washer,lock, cataloged under National Stock Number 5310-01-564-9579, 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 9 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
5310-01-564-9579
Primary Part Number
91190A550
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Mcmaster-Carr Supply Co
Status
ACTIVE
Hardness Rating
44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
Style Designator
SPLIT HELICAL-RIGHT HAND
Outside Diameter
12.7 MILLIMETERS NOMINAL MM
Material Thickness
1.9 MILLIMETERS NOMINAL MM
Specification/standard Data
DIN 7980 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
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 5310-01-564-9579?
NSN 5310-01-564-9579 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 5310-01-564-9579?
NSN 5310-01-564-9579 has 1 manufacturer part number on file: 91190A550 (Mcmaster-Carr Supply Co).
What are the specifications of 91190A550?
Key specifications for 91190A550: Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 12.7 MILLIMETERS NOMINAL MM; Material Thickness: 1.9 MILLIMETERS NOMINAL MM. 9 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-564-9579 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.