PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-8 4-128Clamp,loop

Brady United States · NSN 5340-00-531-8402 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-531-8402 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-531-8402. Primary manufacturer part number: 3-8 4-128.
Features
  • Clamp,loop — FSC 5340
  • Loop Inside Diameter: 0.359 INCHES NOMINAL IN
  • Style Designator: SINGLE LOOP
  • Material: PLASTIC POLYAMIDE NYLON BAND
  • Center to Center Distance Between Loop and Mounting Hole: 0.429 INCHES NOMINAL IN
  • Distance From Loop Center to Tongue End: 0.6321 INCHES NOMINAL IN
  • Diameter: 0.128 INCHES NOMINAL IN
  • Material Thickness: 0.040 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Polyamide Nylon Band construction
General Description

The Clamp,loop, cataloged under National Stock Number 5340-00-531-8402, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brady United States. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5340-00-531-8402
Primary Part Number3-8 4-128
Item NameClamp,loop
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerBrady United States
StatusCANCELLED
Loop Inside Diameter0.359 INCHES NOMINAL IN
Style DesignatorSINGLE LOOP
MaterialPLASTIC POLYAMIDE NYLON BAND
Center to Center Distance Between Loop and Mounting Hole0.429 INCHES NOMINAL IN
Distance From Loop Center to Tongue End0.6321 INCHES NOMINAL IN
Diameter0.128 INCHES NOMINAL IN
Material Thickness0.040 INCHES NOMINAL IN
Tongue Hole TypeROUND, UNTHREADED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-442-4122384128 INTERCHANGEABLE
Gasket
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
6520-01-003-242614769 INTERCHANGEABLE
Bur,dental,excavating
Ss White Burs Llc
Cross-Reference Index
Part NumberManufacturer
3-8 4-128 PRIMARY Brady United States (USA)
8642734 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
3-8-4-128 Brady United States (USA)
Related Parts
5330-00-442-4122INTERCHANGEABLE
GASKET
384128
6520-01-003-2426INTERCHANGEABLE
BUR,DENTAL,EXCAVATING
14769

Frequently Asked Questions

What is NSN 5340-00-531-8402?

NSN 5340-00-531-8402 is a Clamp,loop, manufactured by Brady United States, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-531-8402?

NSN 5340-00-531-8402 has 3 cross-referenced part numbers: 3-8 4-128 (Brady United States), 8642734 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 3-8-4-128 (Brady United States).

What NSN replaces 5340-00-531-8402?

There are 2 known substitutes for 5340-00-531-8402: 5330-00-442-4122, 6520-01-003-2426. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-8 4-128?

Key specifications for 3-8 4-128: Loop Inside Diameter: 0.359 INCHES NOMINAL IN; Style Designator: SINGLE LOOP; Material: PLASTIC POLYAMIDE NYLON BAND; Center to Center Distance Between Loop and Mounting Hole: 0.429 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-531-8402 still in active supply?

NSN 5340-00-531-8402 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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