PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TA1720H021HRClamp,loop

Ta Aerospace Co Div Ta Aerospace · NSN 5340-00-990-2089 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-990-2089 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-990-2089. Primary manufacturer part number: TA1720H021HR.
Features
  • Clamp,loop — FSC 5340
  • Style Designator: OFFSET MOUNT
  • Surface Treatment: PASSIVATE BAND
  • Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE BAND
  • Material Document and Classification: AMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
  • Material: STEEL COMP 321 BAND
  • Material: RUBBER SILICONE CLASS Q CUSHION
  • Tongue Hole Type: ROUND, UNTHREADED
Applications
  • Applications requiring Steel Comp 321 Band construction
General Description

The Clamp,loop, cataloged under National Stock Number 5340-00-990-2089, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ta Aerospace Co Div Ta Aerospace. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-990-2089
Primary Part NumberTA1720H021HR
Item NameClamp,loop
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerTa Aerospace Co Div Ta Aerospace
StatusCANCELLED
Style DesignatorOFFSET MOUNT
Surface TreatmentPASSIVATE BAND
Material Document and ClassificationAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE BAND
Material Document and ClassificationAMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
MaterialSTEEL COMP 321 BAND
MaterialRUBBER SILICONE CLASS Q CUSHION
Tongue Hole TypeROUND, UNTHREADED
Material Thickness0.032 INCHES NOMINAL IN
Diameter0.204 INCHES NOMINAL IN
Center to Center Distance Between Loop and Mounting Hole1.124 INCHES NOMINAL IN
Distance From Loop Center to Tongue End1.342 INCHES NOMINAL IN
Cushioning Environmental ProtectionCORROSION RESISTANT AND WEATHER RESISTANT AND OIL RESISTANT
Loop Inside Diameter1.313 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
No Item Name Available
5360-00-593-435646721 INTERCHANGEABLE
Spring,helical,compression
Honeywell International Inc. Div Aerospace - Torrance
4730-00-700-48224672-1 INTERCHANGEABLE
Elbow,tube
Flexco, Inc
5133-01-017-8779 INTERCHANGEABLE
Drill,twist
3110-01-152-715847676 INTERCHANGEABLE
Plate,retaining,bearing
Liquid Controls, L.l.c. Div Idex Corporation
5365-01-362-26884672-1 INTERCHANGEABLE
Spacer,plate
Mag Aerospace Industries, Llc Div Safran Cabins
7045-01-459-8643 INTERCHANGEABLE
Tape,electronic Data Processing
Cross-Reference Index
Part NumberManufacturer
45D5H21 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
467-21 Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins (USA)
45D5H21 Lockheed Martin Corp (USA)
45D5H21 Exacto Industries Inc (USA)
TA1720H21HR Ta Aerospace Co Div Ta Aerospace (USA)
TA1720H021HR PRIMARY Ta Aerospace Co Div Ta Aerospace (USA)
Related Parts
5340-00-943-5348SUCCESSOR
NO ITEM NAME AVAILABLE
5360-00-593-4356INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
46721
4730-00-700-4822INTERCHANGEABLE
ELBOW,TUBE
4672-1
5133-01-017-8779INTERCHANGEABLE
DRILL,TWIST
3110-01-152-7158INTERCHANGEABLE
PLATE,RETAINING,BEARING
47676
5365-01-362-2688INTERCHANGEABLE
SPACER,PLATE
4672-1
7045-01-459-8643INTERCHANGEABLE
TAPE,ELECTRONIC DATA PROCESSING

Frequently Asked Questions

What is NSN 5340-00-990-2089?

NSN 5340-00-990-2089 is a Clamp,loop, manufactured by Ta Aerospace Co Div Ta Aerospace, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-990-2089?

NSN 5340-00-990-2089 has 6 cross-referenced part numbers: 45D5H21 (Lockheed Martin Corporation Div Rotary and Mission Systems), 467-21 (Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins), 45D5H21 (Lockheed Martin Corp), 45D5H21 (Exacto Industries Inc), TA1720H21HR (Ta Aerospace Co Div Ta Aerospace) and 1 more.

What NSN replaces 5340-00-990-2089?

There are 7 known substitutes for 5340-00-990-2089: 5340-00-943-5348, 5360-00-593-4356, 4730-00-700-4822 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TA1720H021HR?

Key specifications for TA1720H021HR: Style Designator: OFFSET MOUNT; Surface Treatment: PASSIVATE BAND; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE BAND; Material Document and Classification: AMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-990-2089 still in active supply?

NSN 5340-00-990-2089 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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