PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120389Washer,flat

Dressta North America Ltd · NSN 5310-00-270-2055 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-270-2055 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-270-2055. Primary manufacturer part number: 120389.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.094 INCHES NOMINAL IN
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 1010 OVERALL
  • Hole Diameter: 0.516 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 1.250 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-270-2055, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dressta North America Ltd. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-270-2055
Primary Part Number120389
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDressta North America Ltd
StatusCANCELLED
Thickness0.094 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1010 OVERALL
Hole Diameter0.516 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter1.250 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Surface TreatmentZINC OVERALL
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5310-00-012-0389 INTERCHANGEABLE
Washer,flat
2915-00-719-75077-702759 INTERCHANGEABLE
Parts Kit,valve,ove
Parker-Hannifin Corporation Dba Pneutronics
5310-00-809-4061 INTERCHANGEABLE
Washer,flat
3110-00-962-4507358118 INTERCHANGEABLE
Bearing,roller,cylindrical
Skf Usa Inc.
6530-01-505-950412038-9 INTERCHANGEABLE
Cart,medical Equipment and Instr
Artromick International Inc.
5310-01-587-3254120389 INTERCHANGEABLE
Washer,flat
Anixter
Cross-Reference Index
Part NumberManufacturer
120389 PRIMARY Dressta North America Ltd (USA)
811381 PRIMARY Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations (USA)
811381 PRIMARY General Motors Corp (USA)
50452R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
7702759 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
358118 White Motor Corp (USA)
811381 General Motors Corp Delco Remy Div (USA)
811381 PRIMARY Borgwarner Pds (anderson), L.l.c. (USA)
50452R1 PRIMARY Navistar Intl Corp Truck Br Ohio Plant (USA)
Related Parts
5310-00-012-0389INTERCHANGEABLE
WASHER,FLAT
2915-00-719-7507INTERCHANGEABLE
PARTS KIT,VALVE,OVE
7-702759
5310-00-809-4061INTERCHANGEABLE
WASHER,FLAT
3110-00-962-4507INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
358118
6530-01-505-9504INTERCHANGEABLE
CART,MEDICAL EQUIPMENT AND INSTR
12038-9
5310-01-587-3254INTERCHANGEABLE
WASHER,FLAT
120389

Frequently Asked Questions

What is NSN 5310-00-270-2055?

NSN 5310-00-270-2055 is a Washer,flat, manufactured by Dressta North America Ltd, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-270-2055?

NSN 5310-00-270-2055 has 9 cross-referenced part numbers: 120389 (Dressta North America Ltd), 811381 (Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations), 811381 (General Motors Corp), 50452R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 7702759 (U S Army Tank Automotive Command Amsta-Im-Mm) and 4 more.

What NSN replaces 5310-00-270-2055?

There are 6 known substitutes for 5310-00-270-2055: 5310-00-012-0389, 2915-00-719-7507, 5310-00-809-4061 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 120389?

Key specifications for 120389: Thickness: 0.094 INCHES NOMINAL IN; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 1010 OVERALL; Hole Diameter: 0.516 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-270-2055 still in active supply?

NSN 5310-00-270-2055 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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