PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-8603Clamp,loop

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-00-063-8649 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-063-8649 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-063-8649. Primary manufacturer part number: MIL-C-8603.
Features
  • Clamp,loop — FSC 5340
  • Cushioning Environmental Protection: WEATHER RESISTANT
  • Material Document and Classification: AMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
  • Diameter: 0.204 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM BAND
  • Center to Center Distance Between Loop and Mounting Hole: 1.648 INCHES MINIMUM AND 1.678 INCHES MAXIMUM IN
  • Material: RUBBER CHLOROPRENE CLASS CR CUSHION
  • Style Designator: OFFSET MOUNT
Applications
  • Applications requiring Rubber Chloroprene Class Cr Cushion construction
General Description

The Clamp,loop, cataloged under National Stock Number 5340-00-063-8649, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-063-8649
Primary Part NumberMIL-C-8603
Item NameClamp,loop
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Cushioning Environmental ProtectionWEATHER RESISTANT
Material Document and ClassificationAMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
Diameter0.204 INCHES NOMINAL IN
Surface TreatmentCADMIUM BAND
Center to Center Distance Between Loop and Mounting Hole1.648 INCHES MINIMUM AND 1.678 INCHES MAXIMUM IN
MaterialRUBBER CHLOROPRENE CLASS CR CUSHION
Style DesignatorOFFSET MOUNT
Distance From Loop Center to Tongue End1.881 INCHES NOMINAL IN
Loop Inside Diameter2.360 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
Material Thickness0.040 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-416 TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE BAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5340-00-291-5342
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
No Item Name Available
Clamp,loop
Clamp,loop
Clamp,loop
Clamp,loop
Clamp,loop
Clamp,loop
Clamp,loop
Clamp,loop
Clamp,loop
Cross-Reference Index
Part NumberManufacturer
MIL-C-8603 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS21919WG38 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-8603 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS21919G38 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5340-00-291-5342 Clamp,loop
5340-00-200-6536SUCCESSOR
NO ITEM NAME AVAILABLE
5340-00-298-9402SUCCESSOR
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5340-00-514-3013SUCCESSOR
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5340-00-530-5112SUCCESSOR
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5340-00-535-6466SUCCESSOR
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5340-00-535-6471SUCCESSOR
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5340-00-559-6128SUCCESSOR
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5340-00-597-4601SUCCESSOR
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5340-00-597-6153SUCCESSOR
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5340-00-597-6166SUCCESSOR
CLAMP,LOOP
5340-00-598-0205SUCCESSOR
CLAMP,LOOP

Frequently Asked Questions

What is NSN 5340-00-063-8649?

NSN 5340-00-063-8649 is a Clamp,loop, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-063-8649?

NSN 5340-00-063-8649 has 4 cross-referenced part numbers: MIL-C-8603 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS21919WG38 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-8603 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS21919G38 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5340-00-063-8649?

There are 12 known substitutes for 5340-00-063-8649: 5340-00-200-6536, 5340-00-291-5342, 5340-00-298-9402 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-C-8603?

Key specifications for MIL-C-8603: Cushioning Environmental Protection: WEATHER RESISTANT; Material Document and Classification: AMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION; Diameter: 0.204 INCHES NOMINAL IN; Surface Treatment: CADMIUM BAND. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-063-8649 still in active supply?

NSN 5340-00-063-8649 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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