PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

201Washer,shouldered and Recessed

Efcor Inc · NSN 5310-00-125-9924 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-125-9924 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-125-9924. Primary manufacturer part number: 201.
Features
  • Washer,shouldered and Recessed — FSC 5310
  • Shoulder Diameter: 1.109 INCHES NOMINAL IN
  • Recess Depth: 0.030 INCHES NOMINAL IN
  • Surface Treatment: ZINC OVERALL
  • Recess Diameter: 0.990 INCHES NOMINAL IN
  • Shoulder Height: 0.030 INCHES NOMINAL IN
  • Style Designator: SHOULDERED AND RECESSED
  • Outside Diameter: 1.515 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-00-125-9924, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Efcor Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5310-00-125-9924
Primary Part Number201
Item NameWasher,shouldered and Recessed
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEfcor Inc
StatusACTIVE
Shoulder Diameter1.109 INCHES NOMINAL IN
Recess Depth0.030 INCHES NOMINAL IN
Surface TreatmentZINC OVERALL
Recess Diameter0.990 INCHES NOMINAL IN
Shoulder Height0.030 INCHES NOMINAL IN
Style DesignatorSHOULDERED AND RECESSED
Outside Diameter1.515 INCHES NOMINAL IN
Material Thickness0.025 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Hole Diameter0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4920-00-212-866485479 INTERCHANGEABLE
Stand,maintenance,aircraft Engin
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
5365-00-264-1977 INTERCHANGEABLE
Shim
4820-00-383-548685479 INTERCHANGEABLE
Seat,valve
Ashcroft Inc Dba Heise
4730-01-032-6038246090N INTERCHANGEABLE
Insert,tube Fitting
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
Cross-Reference Index
Part NumberManufacturer
201 Efcor Inc
85479 Jenny Products, Inc (USA)
85479 Davey Compressor Co Div of Keco Industries Inc (USA)
Related Parts
4920-00-212-8664INTERCHANGEABLE
STAND,MAINTENANCE,AIRCRAFT ENGIN
85479
5365-00-264-1977INTERCHANGEABLE
SHIM
4820-00-383-5486INTERCHANGEABLE
SEAT,VALVE
85479
4730-01-032-6038INTERCHANGEABLE
INSERT,TUBE FITTING
246090N

Frequently Asked Questions

What is NSN 5310-00-125-9924?

NSN 5310-00-125-9924 is a Washer,shouldered and Recessed, manufactured by Efcor Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-125-9924?

NSN 5310-00-125-9924 has 3 cross-referenced part numbers: 201 (Efcor Inc), 85479 (Jenny Products, Inc), 85479 (Davey Compressor Co Div of Keco Industries Inc).

What NSN replaces 5310-00-125-9924?

There are 4 known substitutes for 5310-00-125-9924: 4920-00-212-8664, 5365-00-264-1977, 4820-00-383-5486 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 201?

Key specifications for 201: Shoulder Diameter: 1.109 INCHES NOMINAL IN; Recess Depth: 0.030 INCHES NOMINAL IN; Surface Treatment: ZINC OVERALL; Recess Diameter: 0.990 INCHES NOMINAL IN. 10 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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