PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1728-02Washer,lock

Avibank Mfg., Inc. Dba Avibank Manufacturing Inc · NSN 5310-01-010-4397 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-010-4397 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-010-4397. Primary manufacturer part number: 1728-02.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.867 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
  • Hole Diameter: 0.640 INCHES MINIMUM AND 0.659 INCHES MAXIMUM IN
  • Style Designator: FLAT INTERNAL TEETH
  • Material Thickness: 0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
  • Material: STEEL COMP 410 OVERALL
  • Material Document and Classification: AISI ASSN STD 1ST MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 410 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-010-4397, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Avibank Mfg., Inc. Dba Avibank Manufacturing Inc. Government technical data includes 7 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-010-4397
Primary Part Number1728-02
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAvibank Mfg., Inc. Dba Avibank Manufacturing Inc
StatusCANCELLED
Outside Diameter0.867 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN
Hardness Rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
Hole Diameter0.640 INCHES MINIMUM AND 0.659 INCHES MAXIMUM IN
Style DesignatorFLAT INTERNAL TEETH
Material Thickness0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
MaterialSTEEL COMP 410 OVERALL
Material Document and ClassificationAISI ASSN STD 1ST MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5310-00-261-7718236-1040P29 INTERCHANGEABLE
Washer,lock
Raytheon Company Div Corp
1620-00-859-2685 INTERCHANGEABLE
Retainer,grease
5305-01-083-8605 INTERCHANGEABLE
Screw
Cross-Reference Index
Part NumberManufacturer
1728-02 Itw Shakeproof Automotive Products (USA)
373-0088-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
1728-02 Satair A/s (DNK)
1728-02 PRIMARY Avibank Mfg., Inc. Dba Avibank Manufacturing Inc (USA)
Related Parts
5310-00-261-7718INTERCHANGEABLE
WASHER,LOCK
236-1040P29
1620-00-859-2685INTERCHANGEABLE
RETAINER,GREASE
5305-01-083-8605INTERCHANGEABLE
SCREW

Frequently Asked Questions

What is NSN 5310-01-010-4397?

NSN 5310-01-010-4397 is a Washer,lock, manufactured by Avibank Mfg., Inc. Dba Avibank Manufacturing Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-010-4397?

NSN 5310-01-010-4397 has 4 cross-referenced part numbers: 1728-02 (Itw Shakeproof Automotive Products), 373-0088-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 1728-02 (Satair A/s), 1728-02 (Avibank Mfg., Inc. Dba Avibank Manufacturing Inc).

What NSN replaces 5310-01-010-4397?

There are 3 known substitutes for 5310-01-010-4397: 5310-00-261-7718, 1620-00-859-2685, 5305-01-083-8605. Verify interchangeability with system specifications before substitution.

What are the specifications of 1728-02?

Key specifications for 1728-02: Outside Diameter: 0.867 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Hole Diameter: 0.640 INCHES MINIMUM AND 0.659 INCHES MAXIMUM IN; Style Designator: FLAT INTERNAL TEETH. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-010-4397 still in active supply?

NSN 5310-01-010-4397 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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