PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1229E1331Washer,flat

Meritor Heavy Vehicle Systems, Llc · NSN 5310-00-286-3727 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-286-3727 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-286-3727. Primary manufacturer part number: 1229E1331.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 1.031 INCHES NOMINAL IN
  • Overall Diameter: 1.812 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL COMP 1035 OVERALL
  • Thickness: 0.250 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1035 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-286-3727, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 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
NSN5310-00-286-3727
Primary Part Number1229E1331
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMeritor Heavy Vehicle Systems, Llc
StatusACTIVE
Hole Diameter1.031 INCHES NOMINAL IN
Overall Diameter1.812 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL COMP 1035 OVERALL
Thickness0.250 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5998-00-204-172969-736 INTERCHANGEABLE
Circuit Card Assembly
Department of Defense Project Manager-Mobile Electric Power
5305-00-339-141569736 INTERCHANGEABLE
Screw,machine
Cummins Inc.
5820-01-079-95357-2990 INTERCHANGEABLE
Receiver,radio
General Electric Co Mobile Communications Business Div
5365-01-241-693872990 INTERCHANGEABLE
Spacer,ring
Cnh Industrial America Llc Dba Cnh America
5306-01-625-886672990-6H-4C INTERCHANGEABLE
Bolt,shear
Sps Technologies, Llc Dba PB Fasteners
5306-01-625-923372990-6H-14C INTERCHANGEABLE
Bolt,shear
Genova Inc
Cross-Reference Index
Part NumberManufacturer
1229E1331 Meritor Industrial Products, Llc (USA)
72990 Little Giant Crane and Shovel Inc (USA)
127079H1 Komatsu American Intl Co (USA)
76L4254-3 Raytheon Company (USA)
102-1471-3 Rexworks Inc (USA)
1229E1331 PRIMARY Meritor Heavy Vehicle Systems, Llc (USA)
76L4254-3 Hughes Missile Systems Co San Diego (USA)
69736 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
5998-00-204-1729INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
69-736
5305-00-339-1415INTERCHANGEABLE
SCREW,MACHINE
69736
5820-01-079-9535INTERCHANGEABLE
RECEIVER,RADIO
7-2990
5365-01-241-6938INTERCHANGEABLE
SPACER,RING
72990
5306-01-625-8866INTERCHANGEABLE
BOLT,SHEAR
72990-6H-4C
5306-01-625-9233INTERCHANGEABLE
BOLT,SHEAR
72990-6H-14C

Frequently Asked Questions

What is NSN 5310-00-286-3727?

NSN 5310-00-286-3727 is a Washer,flat, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-286-3727?

NSN 5310-00-286-3727 has 8 cross-referenced part numbers: 1229E1331 (Meritor Industrial Products, Llc), 72990 (Little Giant Crane and Shovel Inc), 127079H1 (Komatsu American Intl Co), 76L4254-3 (Raytheon Company), 102-1471-3 (Rexworks Inc) and 3 more.

What NSN replaces 5310-00-286-3727?

There are 6 known substitutes for 5310-00-286-3727: 5998-00-204-1729, 5305-00-339-1415, 5820-01-079-9535 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1229E1331?

Key specifications for 1229E1331: Hole Diameter: 1.031 INCHES NOMINAL IN; Overall Diameter: 1.812 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Center Hole Shape Style: ROUND. 8 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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