Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The BHMA-A156.20 A81221 4IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-240-2584, 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.
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626, COMP 11 FED SPEC SINGLE MATERIAL RESPONSE AND FED STD 66, COMP 302, 303, OR 304 FED STD SINGLE MATERIAL RESPONSE PIN
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE QUANTITY
6
PERFORMANCE TYPE
NOT RATED
MATERIAL
STEEL BODY
SURFACE TREATMENT
ZINC OVERALL
BODY WIDTH
1.562 INCHES NOMINAL IN
STYLE DESIGNATOR
STRAP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION
QQ-B-626, COMP 11 FED SPEC SINGLE MATERIAL RESPONSE AND FED STD 66, COMP 302, 303, OR 304 FED STD SINGLE MATERIAL RESPONSE PIN
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FREQUENTLY ASKED QUESTIONS
What is BHMA-A156.20 A81221 4IN?
BHMA-A156.20 A81221 4IN is a BHMA-A156.20 A81221 4IN.
What parts can replace BHMA-A156.20 A81221 4IN?
There are 21 known substitutes for BHMA-A156.20 A81221 4IN: SC922, FFH116, ANSI/ BHMA A156.20- A81221 and 18 more. Substitute compatibility should be verified for your specific system.
Is BHMA-A156.20 A81221 4IN still available?
BHMA-A156.20 A81221 4IN is currently cancelled.
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