PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3817Washer,spring Tension

Instruments and Flight Research, Inc. · NSN 5310-00-397-1895 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-397-1895 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-397-1895. Primary manufacturer part number: 3817.
Features
  • Washer,spring Tension — FSC 5310
  • Hole Diameter: 0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
  • Outside Diameter: 1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Material Document and Classification: MIL-S-7947 COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Style Designator: SPRING TENSION
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 5310-00-397-1895, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Instruments and Flight Research, Inc.. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-397-1895
Primary Part Number3817
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerInstruments and Flight Research, Inc.
StatusACTIVE
Hole Diameter0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
Outside Diameter1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL OVERALL
Material Document and ClassificationMIL-S-7947 COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Style DesignatorSPRING TENSION
Material Thickness0.018 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-070-6929381-7 PL0857-C INTERCHANGEABLE
Valve,angle
Admiral Valve Llc Dba Cpv Manufacturing
5330-00-080-02303817 INTERCHANGEABLE
Packing,preformed
Parker Hannifin Corporation Div Chelsea Products Division
2805-00-173-05251-753GSTD INTERCHANGEABLE
Ring Set,piston
Moog Automotive Inc
5935-00-193-7724K-34J885-8 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Lockheed Martin Corporation Div Rms
5307-00-195-975738-17 INTERCHANGEABLE
Stud,plain
Textron Lycoming Inc Williamsport Plant
5905-00-196-27730205 INTERCHANGEABLE
Resistor,fixed,wire Wound
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5360-00-358-4140CA547 INTERCHANGEABLE
Spring,helical,compression
Maremont Corp
5930-00-369-0281 INTERCHANGEABLE
Handle,knife Switch
5950-00-498-83023817 INTERCHANGEABLE
Transformer,power
Sartron, Inc
5950-00-589-7366 INTERCHANGEABLE
Transformer,power Autotransforme
Cross-Reference Index
Part NumberManufacturer
3817 PRIMARY Instruments and Flight Research, Inc. (USA)
Related Parts
4820-00-070-6929INTERCHANGEABLE
VALVE,ANGLE
381-7 PL0857-C
5330-00-080-0230INTERCHANGEABLE
PACKING,PREFORMED
3817
2805-00-173-0525INTERCHANGEABLE
RING SET,PISTON
1-753GSTD
5935-00-193-7724INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
K-34J885-8
5307-00-195-9757INTERCHANGEABLE
STUD,PLAIN
38-17
5905-00-196-2773INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
0205
5360-00-358-4140INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
CA547
5930-00-369-0281INTERCHANGEABLE
HANDLE,KNIFE SWITCH
5950-00-498-8302INTERCHANGEABLE
TRANSFORMER,POWER
3817
5950-00-589-7366INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
2805-00-847-9775INTERCHANGEABLE
GUIDE,VALVE STEM
133670R1
5950-00-878-7957INTERCHANGEABLE
TRANSFORMER,POWER
WM-5454

Frequently Asked Questions

What is NSN 5310-00-397-1895?

NSN 5310-00-397-1895 is a Washer,spring Tension, manufactured by Instruments and Flight Research, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-397-1895?

NSN 5310-00-397-1895 has 1 cross-referenced part number: 3817 (Instruments and Flight Research, Inc.).

What NSN replaces 5310-00-397-1895?

There are 12 known substitutes for 5310-00-397-1895: 4820-00-070-6929, 5330-00-080-0230, 2805-00-173-0525 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3817?

Key specifications for 3817: Hole Diameter: 0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN; Outside Diameter: 1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material: STEEL OVERALL. 9 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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