PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T26Installation Tool,retaining Ring

Howmet Global Fastening Systems Inc Div Assembly Tooling Division · NSN 5120-00-490-5581 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-490-5581 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-490-5581. Primary manufacturer part number: T26.
Features
  • Installation Tool,retaining Ring — FSC 5120
  • 5 verified cross-references
  • Primary manufacturer: Howmet Global Fastening Systems Inc Div Assembly Tooling Division
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Installation Tool,retaining Ring, cataloged under National Stock Number 5120-00-490-5581, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Howmet Global Fastening Systems Inc Div Assembly Tooling Division. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameInstallation Tool,retaining Ring
FSC / FSG5120 — No Item Name Available (FSG 51)
ManufacturersThorsen Tool Co Sub of Wallace-Murray Corp (CAGE 24789); Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd (CAGE U1918); Howmet Global Fastening Systems Inc Div Assembly Tooling Division (CAGE 1PGC0); Howmet Global Fastening Systems Inc Div Camloc Products (CAGE 71286); Nimikkeistokeskus Ncb Finland (CAGE A486G)
Technical Specifications
ParameterValue
NSN5120-00-490-5581
Primary Part NumberT26
Item NameInstallation Tool,retaining Ring
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc Div Assembly Tooling Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-1486 INTERCHANGEABLE
Bearing,roller,thrust
5965-00-164-8081T26 INTERCHANGEABLE
Chest Set,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5340-00-190-6807MS21314-13 INTERCHANGEABLE
Strap,retaining
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
6685-00-245-4487T-26 INTERCHANGEABLE
Control,temperature
Johnson Controls, Inc Div Building Efficiency
5950-00-268-9009T26 INTERCHANGEABLE
Transformer,audio Frequency
Electronic Transformer Corp Div Electronic Transformer Corporation
7930-00-281-3267NFP-80 INTERCHANGEABLE
Polish,automobile
Reed-Union Corporation
5940-00-329-5801T26 INTERCHANGEABLE
Terminal,lug
Horizon Aerospace Llc Dba Magnetics Division
5950-00-348-0444 INTERCHANGEABLE
Transformer,pulse
5305-00-410-3444M1T-26 INTERCHANGEABLE
Thumbscrew
Reid Supply Company
5120-00-473-72326248334 INTERCHANGEABLE
Puller,mechanical
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
T26 Thorsen Tool Co Sub of Wallace-Murray Corp (USA)
FRS639843 Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd (GBR)
T26 PRIMARY Howmet Global Fastening Systems Inc Div Assembly Tooling Division (USA)
T26 Howmet Global Fastening Systems Inc Div Camloc Products (USA)
10391175 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
3110-00-156-1486INTERCHANGEABLE
BEARING,ROLLER,THRUST
5965-00-164-8081INTERCHANGEABLE
CHEST SET,ELECTRICAL
T26
5340-00-190-6807INTERCHANGEABLE
STRAP,RETAINING
MS21314-13
6685-00-245-4487INTERCHANGEABLE
CONTROL,TEMPERATURE
T-26
5950-00-268-9009INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
T26
7930-00-281-3267INTERCHANGEABLE
POLISH,AUTOMOBILE
NFP-80
5940-00-329-5801INTERCHANGEABLE
TERMINAL,LUG
T26
5950-00-348-0444INTERCHANGEABLE
TRANSFORMER,PULSE
5305-00-410-3444INTERCHANGEABLE
THUMBSCREW
M1T-26
5120-00-473-7232INTERCHANGEABLE
PULLER,MECHANICAL
6248334
5340-00-734-9092INTERCHANGEABLE
HANDLE,DOOR
5950-01-123-1491INTERCHANGEABLE
TRANSFORMER,POWER
SM-A-858492

Frequently Asked Questions

What is NSN 5120-00-490-5581?

NSN 5120-00-490-5581 is a Installation Tool,retaining Ring, manufactured by Howmet Global Fastening Systems Inc Div Assembly Tooling Division, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-490-5581?

NSN 5120-00-490-5581 has 5 cross-referenced part numbers: T26 (Thorsen Tool Co Sub of Wallace-Murray Corp), FRS639843 (Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd), T26 (Howmet Global Fastening Systems Inc Div Assembly Tooling Division), T26 (Howmet Global Fastening Systems Inc Div Camloc Products), 10391175 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 5120-00-490-5581?

There are 12 known substitutes for 5120-00-490-5581: 3110-00-156-1486, 5965-00-164-8081, 5340-00-190-6807 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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