PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-199-2Washer,flat

Amphenol Corp Div Amphenol Aerospace Operations · NSN 5310-00-512-5208 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-512-5208 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-512-5208. Primary manufacturer part number: 2-199-2.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.594 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Material: STEEL OVERALL
  • Thickness: 0.0035 INCHES MINIMUM AND 0.0045 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.396 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-512-5208, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Amphenol Corp Div Amphenol Aerospace Operations. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-512-5208
Primary Part Number2-199-2
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAmphenol Corp Div Amphenol Aerospace Operations
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.594 INCHES NOMINAL IN
Center Hole Shape StyleROUND
MaterialSTEEL OVERALL
Thickness0.0035 INCHES MINIMUM AND 0.0045 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Hole Diameter0.396 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5935-00-578-295164321000050 INTERCHANGEABLE
Connector,receptacle,electrical
Elbitamerica, Inc.
4820-01-192-569321992 INTERCHANGEABLE
Seat,valve
Hoffman/new Yorker Inc
Cross-Reference Index
Part NumberManufacturer
2-199-2 Unison Industries Llc (USA)
2-199-2 PRIMARY Amphenol Corp Div Amphenol Aerospace Operations (USA)
2-199-2 Teledyne Industries Inc Teledyne Power Systems Div (USA)
A326255 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5935-00-578-2951INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
64321000050
4820-01-192-5693INTERCHANGEABLE
SEAT,VALVE
21992

Frequently Asked Questions

What is NSN 5310-00-512-5208?

NSN 5310-00-512-5208 is a Washer,flat, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-512-5208?

NSN 5310-00-512-5208 has 4 cross-referenced part numbers: 2-199-2 (Unison Industries Llc), 2-199-2 (Amphenol Corp Div Amphenol Aerospace Operations), 2-199-2 (Teledyne Industries Inc Teledyne Power Systems Div), A326255 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 5310-00-512-5208?

There are 2 known substitutes for 5310-00-512-5208: 5935-00-578-2951, 4820-01-192-5693. Verify interchangeability with system specifications before substitution.

What are the specifications of 2-199-2?

Key specifications for 2-199-2: Cross-Sectional Shape Style: RECTANGULAR; Overall Diameter: 0.594 INCHES NOMINAL IN; Center Hole Shape Style: ROUND; Material: STEEL OVERALL. 7 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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