PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

493-227Washer,flat 6,aircr

Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering · NSN 5310-01-571-8348 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-571-8348 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-571-8348. Primary manufacturer part number: 493-227.
Features
  • Washer,flat 6,aircr — FSC 5310
  • 3 verified cross-references
  • Primary manufacturer: Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat 6,aircr, cataloged under National Stock Number 5310-01-571-8348, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,flat 6,aircr
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersBarnes Group Inc. Dba Barnes Distribution (CAGE 05573); Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering (CAGE 74QK6); Risk Industries Llc Dba Pines Technology Div Headquarters (CAGE 4RPC2)
Technical Specifications
ParameterValue
NSN5310-01-571-8348
Primary Part Number493-227
Item NameWasher,flat 6,aircr
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAjax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-121-8328 INTERCHANGEABLE
Washer,flat
5330-00-245-3772 INTERCHANGEABLE
Seal,shaft
6610-00-464-67483137-2 INTERCHANGEABLE
Indicator Standoff
Kearflex Engineering Company
5935-00-833-00767209503P2 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Rms
6515-01-582-81588154A-MR-3 INTERCHANGEABLE
Pad,crest,toe
Pedifix, Inc.
Cross-Reference Index
Part NumberManufacturer
31372 Barnes Group Inc. Dba Barnes Distribution (USA)
493-227 PRIMARY Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering (USA)
493-227 Risk Industries Llc Dba Pines Technology Div Headquarters (USA)
Related Parts
5310-00-121-8328INTERCHANGEABLE
WASHER,FLAT
5330-00-245-3772INTERCHANGEABLE
SEAL,SHAFT
6610-00-464-6748INTERCHANGEABLE
INDICATOR STANDOFF
3137-2
5935-00-833-0076INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
7209503P2
6515-01-582-8158INTERCHANGEABLE
PAD,CREST,TOE
8154A-MR-3

Frequently Asked Questions

What is NSN 5310-01-571-8348?

NSN 5310-01-571-8348 is a Washer,flat 6,aircr, manufactured by Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-571-8348?

NSN 5310-01-571-8348 has 3 cross-referenced part numbers: 31372 (Barnes Group Inc. Dba Barnes Distribution), 493-227 (Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering), 493-227 (Risk Industries Llc Dba Pines Technology Div Headquarters).

What NSN replaces 5310-01-571-8348?

There are 5 known substitutes for 5310-01-571-8348: 5310-00-121-8328, 5330-00-245-3772, 6610-00-464-6748 and 2 more. Verify interchangeability with system specifications before substitution.

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