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NSN 5310-01-559-9354Government record, cited

Washer, Flat5310-01-559-9354

NSN 5310-01-559-9354 · NIIN 015599354 · Part number 91860A030
Mcmaster-Carr Supply Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 3A054
Government record, cited
NSN 5310-01-559-9354 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-559-9354. Manufacturer of record part number: 91860A030.
Also searched as  5310-01-559-9354 · 5310015599354 · NIIN 015599354 · 01-559-9354 · FSC 5310 Nuts and Washers · CAGE 3A054 · 91860A030
Nearby stock numbers  ·
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 0.875 INCHES NOMINAL IN
  • Hardness Rating: 44.0 ROCKWELL C NOMINAL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Material: STEEL CORROSION RESISTING OVERALL
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.375 INCHES NOMINAL IN
Identification
  • NSN: 5310-01-559-9354
  • NIIN: 015599354
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 91860A030
  • Manufacturer: Mcmaster-Carr Supply Co
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-559-9354, 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 8 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
ParameterValue
NSN5310-01-559-9354
Primary Part Number91860A030
Item NameWasher,flat
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Overall Diameter0.875 INCHES NOMINAL IN
Hardness Rating44.0 ROCKWELL C NOMINAL
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
MaterialSTEEL CORROSION RESISTING OVERALL
Center Hole Shape StyleROUND
Hole Diameter0.375 INCHES NOMINAL IN
Thickness0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
91860A030 PRIMARY Mcmaster-Carr Supply Co (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
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 5310-01-559-9354?

NSN 5310-01-559-9354 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 5310-01-559-9354?

NSN 5310-01-559-9354 has 1 manufacturer part number on file: 91860A030 (Mcmaster-Carr Supply Co).

What are the specifications of 91860A030?

Key specifications for 91860A030: Overall Diameter: 0.875 INCHES NOMINAL IN; Hardness Rating: 44.0 ROCKWELL C NOMINAL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-559-9354 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.
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