PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11012-2Washer,flat

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 5310-01-325-6031 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-325-6031 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-325-6031. Primary manufacturer part number: 11012-2.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.062 INCHES NOMINAL IN
  • Thickness: 0.102 INCHES NOMINAL IN
  • Material Document and Classification: QQ-N-281,CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: NICKEL ALLOY R-405 OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.562 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy R-405 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-325-6031, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Air & Liquid Systems Corporation Dba Buffalo Pumps. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-325-6031
Primary Part Number11012-2
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Overall Diameter1.062 INCHES NOMINAL IN
Thickness0.102 INCHES NOMINAL IN
Material Document and ClassificationQQ-N-281,CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialNICKEL ALLOY R-405 OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.562 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5930-00-029-945711-0122 INTERCHANGEABLE
Arm,switch Actuator
Rosemount Inc Dba Fisher Rosemount Service and Support
4730-00-277-69882060-4-4B INTERCHANGEABLE
Nipple,tube
Marison Industries Inc Barco Div
5365-00-949-7770 INTERCHANGEABLE
Shim Set
Cross-Reference Index
Part NumberManufacturer
11012-2 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
5930-00-029-9457INTERCHANGEABLE
ARM,SWITCH ACTUATOR
11-0122
4730-00-277-6988INTERCHANGEABLE
NIPPLE,TUBE
2060-4-4B
5365-00-949-7770INTERCHANGEABLE
SHIM SET

Frequently Asked Questions

What is NSN 5310-01-325-6031?

NSN 5310-01-325-6031 is a Washer,flat, manufactured by Air & Liquid Systems Corporation Dba Buffalo Pumps, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-325-6031?

NSN 5310-01-325-6031 has 1 cross-referenced part number: 11012-2 (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 5310-01-325-6031?

There are 3 known substitutes for 5310-01-325-6031: 5930-00-029-9457, 4730-00-277-6988, 5365-00-949-7770. Verify interchangeability with system specifications before substitution.

What are the specifications of 11012-2?

Key specifications for 11012-2: Overall Diameter: 1.062 INCHES NOMINAL IN; Thickness: 0.102 INCHES NOMINAL IN; Material Document and Classification: QQ-N-281,CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: NICKEL ALLOY R-405 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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