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9545K121 — STOPPER,BOTTLE

✓ Government record, cited
MCMASTER-CARR SUPPLY COMPANY · COMPONENT
PRODUCT OVERVIEW

9545K121: STOPPER,BOTTLE.

The STOPPER,BOTTLE is a MCMASTER-CARR SUPPLY COMPANY industrial component. Key specifications include SIZE: REGULAR, MATERIAL: RUBBER, HEAD TYPE: FLAT, FURNISHED ITEMS: STANDARD TAPER, SPECIAL FEATURES: 5.5 SIZE, RUBBER STOPPER TYPE: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 6640-01-692-2075, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
9545K121
NSN: 6640-01-692-2075
FSC: 6640 — Laboratory Equipment and Supplies
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
SIZEREGULAR
MATERIALRUBBER
HEAD TYPEFLAT
FURNISHED ITEMSSTANDARD TAPER
SPECIAL FEATURES5.5 SIZE
RUBBER STOPPER TYPEPLAIN
PART NAME ASSIGNED BY CONTROLLING AGENCYTAPPERED PLUG
OPENING INSIDE DIAMETER FOR WHICH DESIGNED1.046 INCHES NOMINAL IN
NSN6640-01-692-2075
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: MCMASTER-CARR SUPPLY COMPANY STOPPER,BOTTLE TITLE COMPONENT PN 9545K121 MFR MCMASTER-CARR SUPPLY COMPANY STOPPER,BOTTLE
KEY FEATURES
•
HEAD TYPE: FLAT
•
SIZE: REGULAR
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 1.046 INCHES NOMINAL IN
•
RUBBER STOPPER TYPE: PLAIN
•
COLOR: BLACK
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
HEAD TYPEFLAT
SIZEREGULAR
OPENING INSIDE DIAMETER FOR WHICH DESIGNED1.046 INCHES NOMINAL IN
RUBBER STOPPER TYPEPLAIN
COLORBLACK
SPECIAL FEATURES5.5 SIZE
PART NAME ASSIGNED BY CONTROLLING AGENCYTAPPERED PLUG
MATERIALRUBBER
FURNISHED ITEMSSTANDARD TAPER
OTHER ITEMS IN FSC 6640 — Laboratory Equipment and Supplies
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6640-00-001-3348 6640-00-001-6670 6640-00-001-6868 6640-00-001-6871 6640-00-001-8928 6640-00-001-9167 6640-00-001-9168 6640-00-003-4362
SUBSTITUTES & CROSS-REFERENCES 1
6640PL2144076Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9545K121?
9545K121 is a STOPPER,BOTTLE manufactured by MCMASTER-CARR SUPPLY COMPANY.
What parts can replace 9545K121?
There is 1 known substitute for 9545K121: 6640PL2144076. Substitute compatibility should be verified for your specific system.
What is the NSN for 9545K121?
9545K121 is cataloged in the U.S. Government catalog under NSN 6640-01-692-2075. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.