PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120388Washer,flat

Us Army Aviation and Missile Command · NSN 5310-00-012-0388 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-0388 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-0388. Primary manufacturer part number: 120388.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND A CLASS
  • Hole Diameter: 0.437 INCHES NOMINAL IN
  • Thickness: 0.083 INCHES NOMINAL IN
  • Overall Diameter: 1.000 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-012-0388, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-012-0388
Primary Part Number120388
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std DataA TYPE AND 1 GRADE AND A CLASS
Hole Diameter0.437 INCHES NOMINAL IN
Thickness0.083 INCHES NOMINAL IN
Overall Diameter1.000 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-194-72566801 INTERCHANGEABLE
Washer,flat
Ngk-Locke, Inc.
5310-01-244-7460120388 INTERCHANGEABLE
Washer,flat
Komatsu America Corp.
Cross-Reference Index
Part NumberManufacturer
DX554 Diamond Reo Truck Co (USA)
120388 Diamond Reo Truck Co (USA)
120388 General Motors Corp (USA)
34707S8 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
39707S7 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
34707S7 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
MILW1085TYPEA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
120388 Navistar International Corporation Dba Navistar (USA)
LA494-23 Pettibone Llc (USA)
N6460W Diamond Reo Truck Co (USA)
120388 General Motors Llc Dba General Motors Llc (USA)
120388 PRIMARY Us Army Aviation and Missile Command (USA)
JD845 PRIMARY Jenny Products, Inc (USA)
Related Parts
5310-00-194-7256INTERCHANGEABLE
WASHER,FLAT
6801
5310-01-244-7460INTERCHANGEABLE
WASHER,FLAT
120388

Frequently Asked Questions

What is NSN 5310-00-012-0388?

NSN 5310-00-012-0388 is a Washer,flat, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-012-0388?

NSN 5310-00-012-0388 has 13 cross-referenced part numbers: DX554 (Diamond Reo Truck Co), 120388 (Diamond Reo Truck Co), 120388 (General Motors Corp), 34707S8 (Ford Motor Co Ford Parts and Service Div Government Part Sales), 39707S7 (Ford Motor Co Ford Parts and Service Div Government Part Sales) and 8 more.

What NSN replaces 5310-00-012-0388?

There are 2 known substitutes for 5310-00-012-0388: 5310-00-194-7256, 5310-01-244-7460. Verify interchangeability with system specifications before substitution.

What are the specifications of 120388?

Key specifications for 120388: Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL OVERALL; Surface Treatment: CHROMIUM OVERALL; Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND A CLASS. 9 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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