PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33803Washer,flat

Fastenal Company Dba Fastenal Co · NSN 5310-01-556-4506 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-556-4506 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-556-4506. Primary manufacturer part number: 33803.
Features
  • Washer,flat — FSC 5310
  • 2 verified cross-references
  • Primary manufacturer: Fastenal Company Dba Fastenal Co
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-556-4506, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-556-4506
Primary Part Number33803
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-013-1017 INTERCHANGEABLE
Washer,flat
5935-00-201-847613220E3541 INTERCHANGEABLE
Connector,receptacle,electrical
Cecom Lr Center
5935-00-204-816533-803 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Amphenol Corp Div Amphenol Aerospace Operations
2915-00-435-3999131-017 INTERCHANGEABLE
Regulator,pressure
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
6515-01-569-7906338.03 INTERCHANGEABLE
Guide,angle
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
4730-01-690-3381131017 INTERCHANGEABLE
Fitting,lubrication
Coastal Marine Equipment, Inc
Cross-Reference Index
Part NumberManufacturer
131017 Nd Defense Llc (USA)
33803 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
5310-00-013-1017INTERCHANGEABLE
WASHER,FLAT
5935-00-201-8476INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
13220E3541
5935-00-204-8165INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
33-803
2915-00-435-3999INTERCHANGEABLE
REGULATOR,PRESSURE
131-017
6515-01-569-7906INTERCHANGEABLE
GUIDE,ANGLE
338.03
4730-01-690-3381INTERCHANGEABLE
FITTING,LUBRICATION
131017

Frequently Asked Questions

What is NSN 5310-01-556-4506?

NSN 5310-01-556-4506 is a Washer,flat, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-556-4506?

NSN 5310-01-556-4506 has 2 cross-referenced part numbers: 131017 (Nd Defense Llc), 33803 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5310-01-556-4506?

There are 6 known substitutes for 5310-01-556-4506: 5310-00-013-1017, 5935-00-201-8476, 5935-00-204-8165 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33803?

Key specifications for 33803: Part Name Assigned by Controlling Agency: WASHER, .812 X 1.469 X .108; End Item Identification: MRAP - UNIQUE NSN - MAXXPRO CAT I. 2 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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