PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40217Washer,flat

Fastenal Company Dba Fastenal Co · NSN 5310-01-556-6527 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-556-6527 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-556-6527. Primary manufacturer part number: 40217.
Features
  • Washer,flat — FSC 5310
  • 4 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 5310-01-556-6527, 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 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,flat
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersAnixter (CAGE 03KT1); Fastenal Company Dba Fastenal Co (CAGE 0Y3H3); Nd Defense Llc (CAGE 338X5)
Technical Specifications
ParameterValue
NSN5310-01-556-6527
Primary Part Number40217
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5340-00-078-7029 INTERCHANGEABLE
Clip,end,strap
4920-00-215-098140217 INTERCHANGEABLE
Housing Assembly
Alliant Techsystems Operations Llc Div Defense Electronic Systems
9340-00-245-7107 INTERCHANGEABLE
Tubing,glass
5905-00-535-91998173008 INTERCHANGEABLE
Resistor,fixed,wire Wound
Us Army Aviation and Missile Command
3040-00-621-813640217 INTERCHANGEABLE
Gearshaft,spur
Honeywell International Inc. Div Aerospace - Torrance
2910-00-633-1328 INTERCHANGEABLE
Pump,fuel,cam Actuated
5990-00-678-08854021-7 INTERCHANGEABLE
Synchro,differential Receiver
Moog Inc.
5315-01-114-1158 INTERCHANGEABLE
Pin,straight,headless
5962-01-225-674640217 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5360-01-306-509440217 INTERCHANGEABLE
Spring,helical,compression
Bell Intl Inc
Cross-Reference Index
Part NumberManufacturer
40338R1 Anixter (USA)
12759-00563 Fastenal Company Dba Fastenal Co (USA)
40217 PRIMARY Fastenal Company Dba Fastenal Co (USA)
40338R1 Nd Defense Llc (USA)
Related Parts
5340-00-078-7029INTERCHANGEABLE
CLIP,END,STRAP
4920-00-215-0981INTERCHANGEABLE
HOUSING ASSEMBLY
40217
9340-00-245-7107INTERCHANGEABLE
TUBING,GLASS
5905-00-535-9199INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
8173008
3040-00-621-8136INTERCHANGEABLE
GEARSHAFT,SPUR
40217
2910-00-633-1328INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
5990-00-678-0885INTERCHANGEABLE
SYNCHRO,DIFFERENTIAL RECEIVER
4021-7
5315-01-114-1158INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5962-01-225-6746INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
40217
5360-01-306-5094INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
40217
6220-01-701-9125INTERCHANGEABLE
LIGHT,UTILITY,VEHICULAR
40217

Frequently Asked Questions

What is NSN 5310-01-556-6527?

NSN 5310-01-556-6527 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 5310-01-556-6527?

NSN 5310-01-556-6527 has 4 cross-referenced part numbers: 40338R1 (Anixter), 12759-00563 (Fastenal Company Dba Fastenal Co), 40217 (Fastenal Company Dba Fastenal Co), 40338R1 (Nd Defense Llc).

What NSN replaces 5310-01-556-6527?

There are 11 known substitutes for 5310-01-556-6527: 5340-00-078-7029, 4920-00-215-0981, 9340-00-245-7107 and 8 more. Verify interchangeability with system specifications before substitution.

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