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Technical Data Sheet
B27729 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The HOLDER,KEY is a the manufacturer industrial component. Key specifications include special_features: STEEL QQ-A-763 CL 416 COND T;PASSIVATE QQ-P-35;1.000 IN.ID; IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-079-7538, 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
B27729
NSN: 5340-01-079-7538
FSC: 5340
CAGE: 088A2 — C SYSTEMS LLC DBA CRAIG SYSTEMS DBA EASTERN TECHNOLOGIES (USA)
SPECIFICATIONS
special_featuresSTEEL QQ-A-763 CL 416 COND T;PASSIVATE QQ-P-35;1.000 IN.ID; IN
NSN5340-01-079-7538
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B27729 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESSTEEL QQ-A-763 CL 416 COND T;PASSIVATE QQ-P-35;1.000 IN.ID; IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
3227160-12Upgraded Successor
successor cross-reference
successor
167A995-12Upgraded Successor
successor cross-reference
successor
50Upgraded Successor
successor cross-reference
successor
760-5821Upgraded Successor
successor cross-reference
successor
SG8470Upgraded Successor
successor cross-reference
successor
8470XT8415MPXD41XDR162Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B27729?
B27729 is a HOLDER,KEY.
What parts can replace B27729?
There are 8 known substitutes for B27729: 3227160-12, 167A995-12, 50 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B27729?
B27729 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-079-7538. This indicates validated use in U.S. government and defense supply chains.
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