PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

189025Washer,flat

Mission Systems Orchard Park Inc · NSN 5310-01-084-2512 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-084-2512 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-084-2512. Primary manufacturer part number: 189025.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material Document and Classification: ASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 303SE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303SE Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-084-2512, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-084-2512
Primary Part Number189025
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusCANCELLED
Center Hole Shape StyleROUND
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 303SE OVERALL
Thickness0.030 INCHES NOMINAL IN
Overall Diameter0.250 INCHES NOMINAL IN
Hole Diameter0.136 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3110-00-142-4364342S INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
3020-00-462-2152 INTERCHANGEABLE
Gear Sun,primary
6130-01-233-5328PP-7821/FSS-12(V) INTERCHANGEABLE
Power Supply
Joint Electronics Type Designation System
3120-01-437-4800AA3100 INTERCHANGEABLE
Bearing,sleeve
Bunting Bearings Corp
5310-01-641-382971071 INTERCHANGEABLE
Washer,lock
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
189025 American Safety Flight Systems Inc (USA)
71071 Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
189025 PRIMARY Mission Systems Orchard Park Inc (USA)
189025 Conax Florida Corporation (USA)
Related Parts
3110-00-142-4364INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
342S
3020-00-462-2152INTERCHANGEABLE
GEAR SUN,PRIMARY
6130-01-233-5328INTERCHANGEABLE
POWER SUPPLY
PP-7821/FSS-12(V)
3120-01-437-4800INTERCHANGEABLE
BEARING,SLEEVE
AA3100
5310-01-641-3829INTERCHANGEABLE
WASHER,LOCK
71071

Frequently Asked Questions

What is NSN 5310-01-084-2512?

NSN 5310-01-084-2512 is a Washer,flat, manufactured by Mission Systems Orchard Park Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-084-2512?

NSN 5310-01-084-2512 has 4 cross-referenced part numbers: 189025 (American Safety Flight Systems Inc), 71071 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 189025 (Mission Systems Orchard Park Inc), 189025 (Conax Florida Corporation).

What NSN replaces 5310-01-084-2512?

There are 5 known substitutes for 5310-01-084-2512: 3110-00-142-4364, 3020-00-462-2152, 6130-01-233-5328 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 189025?

Key specifications for 189025: Center Hole Shape Style: ROUND; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Surface Treatment: PASSIVATE OVERALL; Peripheral Shape Style: ROUND. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-084-2512 still in active supply?

NSN 5310-01-084-2512 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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