PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204-011-311-1Washer,flat

Bell Textron Inc · NSN 5310-00-893-4392 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-893-4392 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-893-4392. Primary manufacturer part number: 204-011-311-1.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL COMP 416 OVERALL
  • Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Thickness: 0.200 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 1.230 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN
  • Hole Diameter: 0.260 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 416 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-893-4392, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bell Textron Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-893-4392
Primary Part Number204-011-311-1
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBell Textron Inc
StatusACTIVE
MaterialSTEEL COMP 416 OVERALL
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Thickness0.200 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Overall Diameter1.230 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN
Hole Diameter0.260 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5120-00-032-94542951 INTERCHANGEABLE
Wrench-Holder
General Motors Llc Dba General Motors Llc
5910-00-166-9847 INTERCHANGEABLE
Capacitor,variable,air Dielectri
4730-00-317-3877 INTERCHANGEABLE
Reducer,tube
2940-00-414-640842951 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5950-00-839-17542116011 INTERCHANGEABLE
Transformer,radio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5910-00-855-4085914505-1 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Raytheon Company Dba Raytheon
2530-00-870-7346FD18290 INTERCHANGEABLE
Cylinder,hydraulic
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5331-00-965-0736 INTERCHANGEABLE
O-Ring
4730-01-023-7770 INTERCHANGEABLE
Flange,pipe
6640-01-036-631821-55 INTERCHANGEABLE
Slide,microscope
Mckesson Medical-Surgical Inc. Dba Mckesson Medical-Surgical Inc
Cross-Reference Index
Part NumberManufacturer
2951 Progressive Service Co (USA)
204-011-311-1 PRIMARY Bell Textron Inc (USA)
204-011-311-001 Bell Textron Inc (USA)
Related Parts
5120-00-032-9454INTERCHANGEABLE
WRENCH-HOLDER
2951
5910-00-166-9847INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
4730-00-317-3877INTERCHANGEABLE
REDUCER,TUBE
2940-00-414-6408INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42951
5950-00-839-1754INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
2116011
5910-00-855-4085INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
914505-1
2530-00-870-7346INTERCHANGEABLE
CYLINDER,HYDRAULIC
FD18290
5331-00-965-0736INTERCHANGEABLE
O-RING
4730-01-023-7770INTERCHANGEABLE
FLANGE,PIPE
6640-01-036-6318INTERCHANGEABLE
SLIDE,MICROSCOPE
21-55
4530-01-340-2358INTERCHANGEABLE
NOZZLE,OIL BURNER,PRESSURE ATOMI

Frequently Asked Questions

What is NSN 5310-00-893-4392?

NSN 5310-00-893-4392 is a Washer,flat, manufactured by Bell Textron Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-893-4392?

NSN 5310-00-893-4392 has 3 cross-referenced part numbers: 2951 (Progressive Service Co), 204-011-311-1 (Bell Textron Inc), 204-011-311-001 (Bell Textron Inc).

What NSN replaces 5310-00-893-4392?

There are 11 known substitutes for 5310-00-893-4392: 5120-00-032-9454, 5910-00-166-9847, 4730-00-317-3877 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 204-011-311-1?

Key specifications for 204-011-311-1: Material: STEEL COMP 416 OVERALL; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: PASSIVATE OVERALL; Thickness: 0.200 INCHES NOMINAL IN. 9 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