PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

477-18Clamp,loop

Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins · NSN 5340-00-144-8279 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-144-8279 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-144-8279. Primary manufacturer part number: 477-18.
Features
  • Clamp,loop — FSC 5340
  • Material Thickness: 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
  • Center to Center Distance Between Loop and Mounting Hole: 0.959 INCHES NOMINAL IN
  • Distance From Loop Center to Tongue End: 1.177 INCHES NOMINAL IN
  • Diameter: 0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN
  • Surface Treatment: ANODIZE BAND
  • Material: PLASTIC TETRAFLUOROETHYLENE CUSHION
  • Material: ALUMINUM ALLOY 2024 BAND
Applications
  • Applications requiring Plastic Tetrafluoroethylene Cushion construction
General Description

The Clamp,loop, cataloged under National Stock Number 5340-00-144-8279, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-144-8279
Primary Part Number477-18
Item NameClamp,loop
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerTransdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
StatusCANCELLED
Material Thickness0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
Center to Center Distance Between Loop and Mounting Hole0.959 INCHES NOMINAL IN
Distance From Loop Center to Tongue End1.177 INCHES NOMINAL IN
Diameter0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN
Surface TreatmentANODIZE BAND
MaterialPLASTIC TETRAFLUOROETHYLENE CUSHION
MaterialALUMINUM ALLOY 2024 BAND
Loop Inside Diameter1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
Material Document and ClassificationQQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
Style DesignatorOFFSET MOUNT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 5
No Item Name Available
5970-00-211-56794771-8 INTERCHANGEABLE
Insulator,standoff
Continental Electronics Corp
5133-00-841-8708 INTERCHANGEABLE
Drill,twist
5342-01-215-50194771-8 INTERCHANGEABLE
Guide,spring
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
5310-01-522-484547718 INTERCHANGEABLE
Washer,flat
Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control
Cross-Reference Index
Part NumberManufacturer
C2874D18 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
477-18 PRIMARY Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins (USA)
5340PL0837509 Jednolity Indeks Materialowy - Uniform Material Index (POL)
TA11C44D18T PRIMARY Ta Aerospace Co Div Ta Aerospace (USA)
S280D18 Umpco, Inc. Dba Umpco Inc (USA)
Related Parts
5340-01-061-4599SUCCESSOR
NO ITEM NAME AVAILABLE
5970-00-211-5679INTERCHANGEABLE
INSULATOR,STANDOFF
4771-8
5133-00-841-8708INTERCHANGEABLE
DRILL,TWIST
5342-01-215-5019INTERCHANGEABLE
GUIDE,SPRING
4771-8
5310-01-522-4845INTERCHANGEABLE
WASHER,FLAT
47718

Frequently Asked Questions

What is NSN 5340-00-144-8279?

NSN 5340-00-144-8279 is a Clamp,loop, manufactured by Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-144-8279?

NSN 5340-00-144-8279 has 5 cross-referenced part numbers: C2874D18 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 477-18 (Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins), 5340PL0837509 (Jednolity Indeks Materialowy - Uniform Material Index), TA11C44D18T (Ta Aerospace Co Div Ta Aerospace), S280D18 (Umpco, Inc. Dba Umpco Inc).

What NSN replaces 5340-00-144-8279?

There are 5 known substitutes for 5340-00-144-8279: 5340-01-061-4599, 5970-00-211-5679, 5133-00-841-8708 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 477-18?

Key specifications for 477-18: Material Thickness: 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN; Center to Center Distance Between Loop and Mounting Hole: 0.959 INCHES NOMINAL IN; Distance From Loop Center to Tongue End: 1.177 INCHES NOMINAL IN; Overall Width: 0.500 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-144-8279 still in active supply?

NSN 5340-00-144-8279 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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