PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

219550-01Washer,flat

Rockwell Collins, Inc. · NSN 5310-01-267-1683 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-267-1683 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-267-1683. Primary manufacturer part number: 219550-01.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
  • Material Document and Classification: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
  • Surface Treatment: ZINC AND CHROMATE OVERALL
  • Surface Treatment Document and Classification: ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Nondefinitive Spec/std Data: A CLASS AND A TYPE AND 1 GRADE
  • Thickness: 0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1008 or Steel Comp 1010 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-267-1683, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rockwell Collins, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-267-1683
Primary Part Number219550-01
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRockwell Collins, Inc.
StatusACTIVE
Center Hole Shape StyleROUND
Overall Diameter1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
Material Document and ClassificationASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
Surface TreatmentZINC AND CHROMATE OVERALL
Surface Treatment Document and ClassificationASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Nondefinitive Spec/std DataA CLASS AND A TYPE AND 1 GRADE
Thickness0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
MaterialSTEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
Peripheral Shape StyleROUND
Hole Diameter0.658 INCHES MINIMUM AND 0.681 INCHES MAXIMUM IN
Hardness Rating34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5998-01-364-32442-19550-01 INTERCHANGEABLE
Circuit Card Assembly
Excelitas Technologies Corp
Cross-Reference Index
Part NumberManufacturer
219550-01 Rockwell Collins, Inc. (USA)
FF-W-92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51412-12 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5998-01-364-3244INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2-19550-01

Frequently Asked Questions

What is NSN 5310-01-267-1683?

NSN 5310-01-267-1683 is a Washer,flat, manufactured by Rockwell Collins, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-267-1683?

NSN 5310-01-267-1683 has 3 cross-referenced part numbers: 219550-01 (Rockwell Collins, Inc.), FF-W-92 (Federal Specifications Promulgated by General Services Administration Washington DC), MS51412-12 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-01-267-1683?

There is 1 known substitute for 5310-01-267-1683: 5998-01-364-3244. Verify interchangeability with system specifications before substitution.

What are the specifications of 219550-01?

Key specifications for 219550-01: Center Hole Shape Style: ROUND; Overall Diameter: 1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN; Material Document and Classification: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL; Surface Treatment: ZINC AND CHROMATE OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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