PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18891Washer,flat

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5310-00-914-0637 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-914-0637 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-914-0637. Primary manufacturer part number: 18891.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Material Document and Classification: AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.234 INCHES MINIMUM AND 0.238 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.339 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polytetrafluoroethylene Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-914-0637, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-914-0637
Primary Part Number18891
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Center Hole Shape StyleROUND
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Material Document and ClassificationAMS 3651 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Peripheral Shape StyleROUND
Hole Diameter0.234 INCHES MINIMUM AND 0.238 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.339 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
Thickness0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5935-00-518-809733-1889-1 INTERCHANGEABLE
Adapter,connector
Amphenol Corporation Div Amphenol Rf
3120-00-585-9735 INTERCHANGEABLE
Bearing,sleeve
3020-01-112-192818891 INTERCHANGEABLE
Pulley,groove
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5330-01-188-939118891 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
6220-01-384-216310483-003 INTERCHANGEABLE
Light Assembly,indicator
Korry Electronics Co
Cross-Reference Index
Part NumberManufacturer
18891 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5935-00-518-8097INTERCHANGEABLE
ADAPTER,CONNECTOR
33-1889-1
3120-00-585-9735INTERCHANGEABLE
BEARING,SLEEVE
3020-01-112-1928INTERCHANGEABLE
PULLEY,GROOVE
18891
5330-01-188-9391INTERCHANGEABLE
SEAL,PLAIN ENCASED
18891
6220-01-384-2163INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
10483-003

Frequently Asked Questions

What is NSN 5310-00-914-0637?

NSN 5310-00-914-0637 is a Washer,flat, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-914-0637?

NSN 5310-00-914-0637 has 1 cross-referenced part number: 18891 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5310-00-914-0637?

There are 5 known substitutes for 5310-00-914-0637: 5935-00-518-8097, 3120-00-585-9735, 3020-01-112-1928 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18891?

Key specifications for 18891: Center Hole Shape Style: ROUND; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; Material Document and Classification: AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Peripheral Shape Style: ROUND. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com