PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21573-504Clamp,utility,laboratory

Vwr International, Llc Dba Vwr Scientific · NSN 6640-00-962-9820 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-962-9820 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-962-9820. Primary manufacturer part number: 21573-504.
Features
  • Clamp,utility,laboratory — FSC 6640
  • Attachment Method: ROD CLAMP
  • Integral Attachment Provision: PROVIDED
  • Swivel Jaw: PROVIDED
  • Jaw Arms Adjustment Method: SINGLE BOLT
  • Material: COPPER ALLOY LOCATION NOT OTHERWISE SPECIFIED
  • Rod Maximum Clamping Diameter: 0.750 INCHES IN
  • Construction: ROUND
Applications
  • Applications requiring Copper Alloy Location Not Otherwise Specified construction
General Description

The Clamp,utility,laboratory, cataloged under National Stock Number 6640-00-962-9820, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Vwr International, Llc Dba Vwr Scientific. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-00-962-9820
Primary Part Number21573-504
Item NameClamp,utility,laboratory
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerVwr International, Llc Dba Vwr Scientific
StatusACTIVE
Attachment MethodROD CLAMP
Integral Attachment ProvisionPROVIDED
Swivel JawPROVIDED
Jaw Arms Adjustment MethodSINGLE BOLT
MaterialCOPPER ALLOY LOCATION NOT OTHERWISE SPECIFIED
Rod Maximum Clamping Diameter0.750 INCHES IN
ConstructionROUND
MaterialPLASTIC SLEEVE
Attachment Facility LocationEND
Jaw TypeSINGLE
Maximum Clamping Diameter1.500 INCHES IN
Surface TreatmentNICKEL
Control MethodADJUSTING NUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5950-00-646-2895 INTERCHANGEABLE
Reactor
2640-00-726-7896752-03 INTERCHANGEABLE
Valve,pneumatic Tire
Aqua Enterprises
6510-00-890-13691530-0 INTERCHANGEABLE
Adhesive Tape,surgical
3m Company Div Health Care Business
6685-00-902-6772VD10316 INTERCHANGEABLE
Thermostat,flow Control
Vernatherm Llc
6640-01-294-6177 INTERCHANGEABLE
Clamp,utility,laboratory
5935-01-329-0839 INTERCHANGEABLE
Connector,plug,electrical
3040-01-341-22081-30-630RGPC5766 INTERCHANGEABLE
Shaft,straight
Skf Usa Inc.
5955-01-441-95195766 INTERCHANGEABLE
Oscillator,crystal Controlled
Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled
5120-01-461-2013J5766 INTERCHANGEABLE
Socket,socket Wrench
The Stanley Works Dba Stanley Proto
6515-01-515-8485124B INTERCHANGEABLE
Support,arch
Footworks Net
Cross-Reference Index
Part NumberManufacturer
S18977 Sargent-Welch Scientific Co (USA)
21573-504 PRIMARY Vwr International, Llc Dba Vwr Scientific (USA)
05-769-5 Fisher Scientific Company L.l.c. (USA)
5-766 Fisher Scientific Worldwide (USA)
Related Parts
5950-00-646-2895INTERCHANGEABLE
REACTOR
2640-00-726-7896INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
752-03
6510-00-890-1369INTERCHANGEABLE
ADHESIVE TAPE,SURGICAL
1530-0
6685-00-902-6772INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
VD10316
6640-01-294-6177INTERCHANGEABLE
CLAMP,UTILITY,LABORATORY
5935-01-329-0839INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3040-01-341-2208INTERCHANGEABLE
SHAFT,STRAIGHT
1-30-630RGPC5766
5955-01-441-9519INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
5766
5120-01-461-2013INTERCHANGEABLE
SOCKET,SOCKET WRENCH
J5766
6515-01-515-8485INTERCHANGEABLE
SUPPORT,ARCH
124B
2530-01-624-1575INTERCHANGEABLE
PAYLOAD CARRIER
5766

Frequently Asked Questions

What is NSN 6640-00-962-9820?

NSN 6640-00-962-9820 is a Clamp,utility,laboratory, manufactured by Vwr International, Llc Dba Vwr Scientific, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-00-962-9820?

NSN 6640-00-962-9820 has 4 cross-referenced part numbers: S18977 (Sargent-Welch Scientific Co), 21573-504 (Vwr International, Llc Dba Vwr Scientific), 05-769-5 (Fisher Scientific Company L.l.c.), 5-766 (Fisher Scientific Worldwide).

What NSN replaces 6640-00-962-9820?

There are 11 known substitutes for 6640-00-962-9820: 5950-00-646-2895, 2640-00-726-7896, 6510-00-890-1369 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21573-504?

Key specifications for 21573-504: Attachment Method: ROD CLAMP; Integral Attachment Provision: PROVIDED; Swivel Jaw: PROVIDED; Jaw Arms Adjustment Method: SINGLE BOLT. 14 total characteristics are documented in the Federal Logistics Information System.

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