PartsTable TECHNICAL DATA SHEET
NSN 5310-00-802-0663Government record, cited

Washer, Flat5310-00-802-0663

NSN 5310-00-802-0663 · NIIN 008020663 · Part number CYRD137
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 05624
Government record, cited
NSN 5310-00-802-0663 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-802-0663. Manufacturer of record part number: CYRD137.
Also searched as  5310-00-802-0663 · 5310008020663 · NIIN 008020663 · 00-802-0663 · FSC 5310 Nuts and Washers · CAGE 05624 · CYRD137
Nearby stock numbers  ·
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Material: COPPER ALLOY OVERALL
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
  • Thickness: 0.016 INCHES NOMINAL IN
Identification
  • NSN: 5310-00-802-0663
  • NIIN: 008020663
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: CYRD137
  • Manufacturer: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-802-0663, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. 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
ParameterValue
NSN5310-00-802-0663
Primary Part NumberCYRD137
Item NameWasher,flat
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerGe Aviation Systems Llc Dba Ge Aviation Systems Llc
StatusACTIVE
Overall Diameter0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
MaterialCOPPER ALLOY OVERALL
Center Hole Shape StyleROUND
Hole Diameter0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Thickness0.016 INCHES NOMINAL 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
CYRD137 PRIMARY Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (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 5310-00-802-0663?

NSN 5310-00-802-0663 is a Washer,flat, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-00-802-0663?

NSN 5310-00-802-0663 has 1 manufacturer part number on file: CYRD137 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).

What are the specifications of CYRD137?

Key specifications for CYRD137: Overall Diameter: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: COPPER ALLOY OVERALL. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-802-0663 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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