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NSN 5310-01-594-9581Government record, cited

Washer, Flat5310-01-594-9581

NSN 5310-01-594-9581 · NIIN 015949581 · Part number 220-7109
Caterpillar Inc Div Caterpillar Defense · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 11083
Government record, cited
NSN 5310-01-594-9581 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-594-9581. Manufacturer of record part number: 220-7109.
Also searched as  5310-01-594-9581 · 5310015949581 · NIIN 015949581 · 01-594-9581 · FSC 5310 Nuts and Washers · CAGE 11083 · 220-7109
Nearby stock numbers  ·
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 85.0 MILLIMETERS NOMINAL MM
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Material: STEEL OVERALL
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 51.0 MILLIMETERS NOMINAL MM
  • Thickness: 3.0 MILLIMETERS NOMINAL MM
Identification
  • NSN: 5310-01-594-9581
  • NIIN: 015949581
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 220-7109
  • Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-594-9581, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-594-9581
Primary Part Number220-7109
Item NameWasher,flat
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Overall Diameter85.0 MILLIMETERS NOMINAL MM
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
MaterialSTEEL OVERALL
Center Hole Shape StyleROUND
Hole Diameter51.0 MILLIMETERS NOMINAL MM
Thickness3.0 MILLIMETERS NOMINAL MM
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
220-7109 Hastings Deering (aust) Pty Ltd (AUS)
220-7109 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
220-7109 Finning (uk) Ltd (GBR)
220-7109 Westrac Equipment Pty Ltd (AUS)
220-7109 William Adams Pty Ltd (AUS)
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 5310-01-594-9581?

NSN 5310-01-594-9581 is a Washer,flat, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-594-9581?

NSN 5310-01-594-9581 has 5 manufacturer part numbers on file: 220-7109 (Hastings Deering (aust) Pty Ltd), 220-7109 (Caterpillar Inc Div Caterpillar Defense), 220-7109 (Finning (uk) Ltd), 220-7109 (Westrac Equipment Pty Ltd), 220-7109 (William Adams Pty Ltd).

What are the specifications of 220-7109?

Key specifications for 220-7109: Overall Diameter: 85.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL OVERALL. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-594-9581 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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