PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2552485Washer,spring Tension

The Boeing Company · NSN 5310-00-527-3620 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-527-3620 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-527-3620. Primary manufacturer part number: 2552485.
Features
  • Washer,spring Tension — FSC 5310
  • Hole Diameter: 0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
  • Material Thickness: 0.016 INCHES NOMINAL IN
  • Material Document and Classification: QQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY OVERALL
  • Outside Diameter: 0.383 INCHES NOMINAL IN
  • Surface Treatment: SILVER OVERALL
  • 5 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Washer,spring Tension, cataloged under National Stock Number 5310-00-527-3620, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-527-3620
Primary Part Number2552485
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerThe Boeing Company
StatusACTIVE
Hole Diameter0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Material Thickness0.016 INCHES NOMINAL IN
Material Document and ClassificationQQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
Outside Diameter0.383 INCHES NOMINAL IN
Surface TreatmentSILVER OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3120-00-540-7008401751 INTERCHANGEABLE
Bearing,washer,thrust
Woodward, Inc. Div Fuel Systems and Controls
3010-01-276-120340175-1 INTERCHANGEABLE
Sleeve,flexible Cou
Zurn Industries Inc
4820-01-470-8422 INTERCHANGEABLE
Valve,regulating,temperature
5961-01-562-501840175-1 INTERCHANGEABLE
Semiconductor Device,thyristor
United Technologies Corp Hamilton Sundstrand Corp
Cross-Reference Index
Part NumberManufacturer
2552485 PRIMARY The Boeing Company (USA)
2552485 Gray Radio Co Inc (USA)
61A107B69 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
60A52B114 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
401751 Singer Co the (USA)
Related Parts
3120-00-540-7008INTERCHANGEABLE
BEARING,WASHER,THRUST
401751
3010-01-276-1203INTERCHANGEABLE
SLEEVE,FLEXIBLE COU
40175-1
4820-01-470-8422INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
5961-01-562-5018INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
40175-1

Frequently Asked Questions

What is NSN 5310-00-527-3620?

NSN 5310-00-527-3620 is a Washer,spring Tension, manufactured by The Boeing Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-527-3620?

NSN 5310-00-527-3620 has 5 cross-referenced part numbers: 2552485 (The Boeing Company), 2552485 (Gray Radio Co Inc), 61A107B69 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 60A52B114 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 401751 (Singer Co the).

What NSN replaces 5310-00-527-3620?

There are 4 known substitutes for 5310-00-527-3620: 3120-00-540-7008, 3010-01-276-1203, 4820-01-470-8422 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2552485?

Key specifications for 2552485: Overall Height: 0.062 INCHES NOMINAL IN; Hole Diameter: 0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Material Thickness: 0.016 INCHES NOMINAL IN; Material Document and Classification: QQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 7 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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