PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3438Washer,flat

Telemechanics Inc · NSN 5310-00-805-6890 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-805-6890 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-805-6890. Primary manufacturer part number: 3438.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.0475 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN
  • Overall Diameter: 0.427 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
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 5310-00-805-6890, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-805-6890
Primary Part Number3438
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Thickness0.0475 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN
Overall Diameter0.427 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2825-00-146-0129D15-3950PC429T0431 INTERCHANGEABLE
Bucket Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5120-00-242-3268034C INTERCHANGEABLE
Screwdriver,offset
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5310-00-291-88933438 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
5315-00-341-88453438 INTERCHANGEABLE
Pin,drive,power Actuated
Illinois Tool Works Inc
2990-00-374-8564T-3438 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
3120-00-383-855617557 INTERCHANGEABLE
Bearing,sleeve
Mitsubishi Caterpillar Forklift America, Inc
2520-00-405-1728D3-1011C INTERCHANGEABLE
Shifter Collar
Astec Industries Inc Div Astec Ind.
5950-00-504-73813438 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
5120-00-511-6065 INTERCHANGEABLE
Cable Puller
7610-01-123-32253438 INTERCHANGEABLE
Sheet,technical
Honeywell International Inc. Dba Honeywell Div Aerospace -Olathe Hums Div
Cross-Reference Index
Part NumberManufacturer
3438 Telemechanics Inc (USA)
3438 At and T Corp (USA)
3438 American Telephone and Telegraph Co (USA)
16210634 Eastern Air Devices Inc Dba Ead Motors (USA)
3438 Lucent Technologies Inc Dba Federal Marketing Group (USA)
3438 Zf Industrieantriebe Witten Gmbh (DEU)
HC28-34G5 Eastern Air Devices Inc Dba Ead Motors (USA)
Related Parts
2825-00-146-0129INTERCHANGEABLE
BUCKET ASSEMBLY
D15-3950PC429T0431
5120-00-242-3268INTERCHANGEABLE
SCREWDRIVER,OFFSET
034C
5310-00-291-8893INTERCHANGEABLE
WASHER,FLAT
3438
5315-00-341-8845INTERCHANGEABLE
PIN,DRIVE,POWER ACTUATED
3438
2990-00-374-8564INTERCHANGEABLE
MUFFLER,EXHAUST
T-3438
3120-00-383-8556INTERCHANGEABLE
BEARING,SLEEVE
17557
2520-00-405-1728INTERCHANGEABLE
SHIFTER COLLAR
D3-1011C
5950-00-504-7381INTERCHANGEABLE
TRANSFORMER,POWER
3438
5120-00-511-6065INTERCHANGEABLE
CABLE PULLER
7610-01-123-3225INTERCHANGEABLE
SHEET,TECHNICAL
3438
5998-01-239-7827INTERCHANGEABLE
EXTRACTOR,ELECTRICAL CARD
3438
5120-01-399-9188INTERCHANGEABLE
SCREWDRIVER,OFFSET
J343/8

Frequently Asked Questions

What is NSN 5310-00-805-6890?

NSN 5310-00-805-6890 is a Washer,flat, manufactured by Telemechanics Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-805-6890?

NSN 5310-00-805-6890 has 7 cross-referenced part numbers: 3438 (Telemechanics Inc), 3438 (At and T Corp), 3438 (American Telephone and Telegraph Co), 16210634 (Eastern Air Devices Inc Dba Ead Motors), 3438 (Lucent Technologies Inc Dba Federal Marketing Group) and 2 more.

What NSN replaces 5310-00-805-6890?

There are 12 known substitutes for 5310-00-805-6890: 2825-00-146-0129, 5120-00-242-3268, 5310-00-291-8893 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3438?

Key specifications for 3438: Thickness: 0.0475 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN; Overall Diameter: 0.427 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-805-6890 still in active supply?

NSN 5310-00-805-6890 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.
PartsTable Design LLC · partstable.com