PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28719Washer,flat

Hydro-Aire Aerospace Corp · NSN 5310-00-908-6156 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-908-6156 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-908-6156. Primary manufacturer part number: 28719.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.231 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Finish: 32.0 MICROINCHES BOTTOM
  • Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL COMP 416 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 416 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-908-6156, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 13 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-908-6156
Primary Part Number28719
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusCANCELLED
Hole Diameter0.231 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface Finish32.0 MICROINCHES BOTTOM
Surface Treatment Document and ClassificationMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 416 OVERALL
Surface Finish32.0 MICROINCHES TOP
Thickness0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.325 INCHES MINIMUM AND 0.331 INCHES MAXIMUM IN
Hardness Rating25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3455-00-023-4281 INTERCHANGEABLE
File,rotary
5360-00-253-690628719 INTERCHANGEABLE
Spring,helical,compression
Komatsu America Corporation
3120-00-364-404430003 INTERCHANGEABLE
Bushing,sleeve
Parker-Hannifin Corporation
5330-00-447-9260QD647 INTERCHANGEABLE
Gasket
Wisconsin Motors, Llc
4730-00-861-6818 INTERCHANGEABLE
Adapter,straight,pipe to Tube
5315-01-157-169626733 INTERCHANGEABLE
Pin
Dresser, Llc
5940-01-347-2438DL1-3449-8K-CT-CI INTERCHANGEABLE
Terminal,stud
Staffall, Inc. Dba Staffall Inc
Cross-Reference Index
Part NumberManufacturer
5710-50-20 Seastrom Manufacturing Co Inc (USA)
991625-65 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
28719 PRIMARY Hydro-Aire Aerospace Corp (USA)
732013-10 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
3455-00-023-4281INTERCHANGEABLE
FILE,ROTARY
5360-00-253-6906INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
28719
3120-00-364-4044INTERCHANGEABLE
BUSHING,SLEEVE
30003
5330-00-447-9260INTERCHANGEABLE
GASKET
QD647
4730-00-861-6818INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
5315-01-157-1696INTERCHANGEABLE
PIN
26733
5940-01-347-2438INTERCHANGEABLE
TERMINAL,STUD
DL1-3449-8K-CT-CI

Frequently Asked Questions

What is NSN 5310-00-908-6156?

NSN 5310-00-908-6156 is a Washer,flat, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-908-6156?

NSN 5310-00-908-6156 has 4 cross-referenced part numbers: 5710-50-20 (Seastrom Manufacturing Co Inc), 991625-65 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 28719 (Hydro-Aire Aerospace Corp), 732013-10 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 5310-00-908-6156?

There are 7 known substitutes for 5310-00-908-6156: 3455-00-023-4281, 5360-00-253-6906, 3120-00-364-4044 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28719?

Key specifications for 28719: Hole Diameter: 0.231 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Surface Finish: 32.0 MICROINCHES BOTTOM. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-908-6156 still in active supply?

NSN 5310-00-908-6156 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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