NSN 5365-01-644-6831 · NIIN 016446831 · Part number 2637508-71
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 5365 — Bushings, Rings, Shims, and Spacers · FSG 53 — Hardware and Abrasives · CAGE 10001
Government record, cited
NSN 5365-01-644-6831 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-644-6831. Manufacturer of record part number: 2637508-71.
Also searched as5365-01-644-6831 ·
5365016446831 ·
NIIN 016446831 ·
01-644-6831 ·
FSC 5365 Bushings, Rings, Shims, and Spacers · CAGE 10001 · 2637508-71
Manufacturer of record: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Identification
NSN: 5365-01-644-6831
NIIN: 016446831
FSC: 5365 — Bushings, Rings, Shims, and Spacers
FSG: 53 — Hardware and Abrasives
Primary part number: 2637508-71
Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
General Description
The Spacer,ring, cataloged under National Stock Number 5365-01-644-6831, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5365-01-644-6831
Primary Part Number
2637508-71
Item Name
Spacer,ring
FSC / FSG
5365 / 53 — Bushings, Rings, Shims, and Spacers
Manufacturer
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 5365 — Bushings, Rings, Shims, and Spacers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5365-00-000-6078
5365-00-000-6078 · Item name not on file
5365-00-000-7436
5365-00-000-7436 · Item name not on file
5365-00-001-1292
PLUG,MACHINE THREAD
5365-00-001-1365
5365-00-001-1365 · Item name not on file
5365-00-001-1841
RING,TORQUE,TUBE,INBOARD,RUDDER
5365-00-001-1915
5365-00-001-1915 · Item name not on file
5365-00-001-1916
5365-00-001-1916 · Item name not on file
5365-00-001-1940
5365-00-001-1940 · Item name not on file
Frequently Asked Questions
What is NSN 5365-01-644-6831?
NSN 5365-01-644-6831 is a Spacer,ring, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
What part numbers are listed for NSN 5365-01-644-6831?
NSN 5365-01-644-6831 has 1 manufacturer part number on file: 2637508-71 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
What are the specifications of 2637508-71?
Key specifications for 2637508-71: Outside Diameter: 0.750 INCHES NOMINAL IN; Overall Thickness: 1.000 INCHES NOMINAL IN; Inside Diameter: 0.344 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: SPACER. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5365-01-644-6831 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.