PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21631Spacer,ring

Aerosonic Llc · NSN 5365-00-928-7641 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-928-7641 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-928-7641. Primary manufacturer part number: 21631.
Features
  • Spacer,ring — FSC 5365
  • Material Document and Classification: WW-T-700/6,T4 FED SPEC SINGLE MATERIAL RESPONSE
  • Material: ALUMINUM ALLOY 6061
  • Outside Diameter: 2.913 INCHES NOMINAL IN
  • Overall Thickness: 0.132 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
  • Inside Diameter: 2.812 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Aerosonic Llc
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Spacer,ring, cataloged under National Stock Number 5365-00-928-7641, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aerosonic Llc. Government technical data includes 5 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-00-928-7641
Primary Part Number21631
Item NameSpacer,ring
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerAerosonic Llc
StatusACTIVE
Material Document and ClassificationWW-T-700/6,T4 FED SPEC SINGLE MATERIAL RESPONSE
MaterialALUMINUM ALLOY 6061
Outside Diameter2.913 INCHES NOMINAL IN
Overall Thickness0.132 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
Inside Diameter2.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-135-4048293-4C39 INTERCHANGEABLE
Socket,plug-in Electronic Compon
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
6625-01-171-5557 INTERCHANGEABLE
Ammeter
4720-01-347-870721631 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5310-01-363-88372163 INTERCHANGEABLE
Washer,flat
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
Cross-Reference Index
Part NumberManufacturer
21631 PRIMARY Aerosonic Llc (USA)
Related Parts
5935-00-135-4048INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
293-4C39
6625-01-171-5557INTERCHANGEABLE
AMMETER
4720-01-347-8707INTERCHANGEABLE
HOSE,PREFORMED
21631
5310-01-363-8837INTERCHANGEABLE
WASHER,FLAT
2163

Frequently Asked Questions

What is NSN 5365-00-928-7641?

NSN 5365-00-928-7641 is a Spacer,ring, manufactured by Aerosonic Llc, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-928-7641?

NSN 5365-00-928-7641 has 1 cross-referenced part number: 21631 (Aerosonic Llc).

What NSN replaces 5365-00-928-7641?

There are 4 known substitutes for 5365-00-928-7641: 5935-00-135-4048, 6625-01-171-5557, 4720-01-347-8707 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21631?

Key specifications for 21631: Material Document and Classification: WW-T-700/6,T4 FED SPEC SINGLE MATERIAL RESPONSE; Material: ALUMINUM ALLOY 6061; Outside Diameter: 2.913 INCHES NOMINAL IN; Overall Thickness: 0.132 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN. 5 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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