PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S8154-401C025Washer,flat

Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix · NSN 5310-01-029-0680 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-029-0680 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-029-0680. Primary manufacturer part number: S8154-401C025.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL OVERALL
  • Material Document and Classification: MIL-S-5059,TYPE 301,COND 1/4 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thickness: 0.250 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 1.230 INCHES MINIMUM AND 1.240 INCHES MAXIMUM 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 5310-01-029-0680, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-029-0680
Primary Part NumberS8154-401C025
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
StatusACTIVE
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL OVERALL
Material Document and ClassificationMIL-S-5059,TYPE 301,COND 1/4 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Thickness0.250 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Overall Diameter1.230 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN
Hole Diameter0.920 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4810-00-730-35291012200-2 INTERCHANGEABLE
Valve,linear,directional Control
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
Cross-Reference Index
Part NumberManufacturer
10122002 Nimikkeistokeskus Ncb Finland (FIN)
S8154-401C025 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
Related Parts
4810-00-730-3529INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
1012200-2

Frequently Asked Questions

What is NSN 5310-01-029-0680?

NSN 5310-01-029-0680 is a Washer,flat, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-029-0680?

NSN 5310-01-029-0680 has 2 cross-referenced part numbers: 10122002 (Nimikkeistokeskus Ncb Finland), S8154-401C025 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix).

What NSN replaces 5310-01-029-0680?

There is 1 known substitute for 5310-01-029-0680: 4810-00-730-3529. Verify interchangeability with system specifications before substitution.

What are the specifications of S8154-401C025?

Key specifications for S8154-401C025: Peripheral Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL OVERALL; Material Document and Classification: MIL-S-5059,TYPE 301,COND 1/4 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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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