PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HY237-1-2Washer,flat

Hyperion Industries Inc · NSN 5310-00-640-9372 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-640-9372 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-640-9372. Primary manufacturer part number: HY237-1-2.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Material: WOOL OR COTTON OR CELLULOSE OR GLASS OVERALL
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • Thickness: 0.062 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Wool or Cotton or Cellulose or Glass Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-640-9372, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hyperion Industries 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-640-9372
Primary Part NumberHY237-1-2
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHyperion Industries Inc
StatusCANCELLED
Center Hole Shape StyleROUND
Overall Diameter0.750 INCHES NOMINAL IN
Peripheral Shape StyleROUND
MaterialWOOL OR COTTON OR CELLULOSE OR GLASS OVERALL
Hole Diameter0.375 INCHES NOMINAL IN
Thickness0.062 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
6625-00-168-00402169 INTERCHANGEABLE
Calibrator,electrical Power
Spectrum Control Inc Div Weinschel
5330-00-219-2284216-9 INTERCHANGEABLE
Gasket
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
6810-00-233-0124 INTERCHANGEABLE
Silver Nitrate
6240-00-267-7199CM2169 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
5998-00-470-26891203P38 INTERCHANGEABLE
Electronic Components Assembly
Bae Systems Information and Electronic Systems Integration Inc.
5331-00-598-63412-169C873-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5985-00-682-8827 INTERCHANGEABLE
Coupler,directional
5999-01-145-63039160-0250 INTERCHANGEABLE
Magnet,permanent
Keysight Technologies Inc
5950-01-149-923030011 INTERCHANGEABLE
Reactor
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5995-01-426-68702169 INTERCHANGEABLE
Cable Assembly,radio Frequency
Tech Resources, Inc
Cross-Reference Index
Part NumberManufacturer
HY237-1-2 Hyperion Industries Inc (USA)
2169 Dialight Corporation (USA)
203 Duracell Inc (USA)
2169 Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron (USA)
Related Parts
6625-00-168-0040INTERCHANGEABLE
CALIBRATOR,ELECTRICAL POWER
2169
5330-00-219-2284INTERCHANGEABLE
GASKET
216-9
6810-00-233-0124INTERCHANGEABLE
SILVER NITRATE
6240-00-267-7199INTERCHANGEABLE
LAMP,INCANDESCENT
CM2169
5998-00-470-2689INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
1203P38
5331-00-598-6341INTERCHANGEABLE
O-RING
2-169C873-70
5985-00-682-8827INTERCHANGEABLE
COUPLER,DIRECTIONAL
5999-01-145-6303INTERCHANGEABLE
MAGNET,PERMANENT
9160-0250
5950-01-149-9230INTERCHANGEABLE
REACTOR
30011
5995-01-426-6870INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
2169

Frequently Asked Questions

What is NSN 5310-00-640-9372?

NSN 5310-00-640-9372 is a Washer,flat, manufactured by Hyperion Industries Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-640-9372?

NSN 5310-00-640-9372 has 4 cross-referenced part numbers: HY237-1-2 (Hyperion Industries Inc), 2169 (Dialight Corporation), 203 (Duracell Inc), 2169 (Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron).

What NSN replaces 5310-00-640-9372?

There are 10 known substitutes for 5310-00-640-9372: 6625-00-168-0040, 5330-00-219-2284, 6810-00-233-0124 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HY237-1-2?

Key specifications for HY237-1-2: Center Hole Shape Style: ROUND; Overall Diameter: 0.750 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Material: WOOL OR COTTON OR CELLULOSE OR GLASS OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-640-9372 still in active supply?

NSN 5310-00-640-9372 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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