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Technical Data Sheet
PartsTable / COMPONENT / BACS12B-2
BACS12B-2 ✓ 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 FASTENER,FLARE LOCK is a the manufacturer industrial component. Key specifications include head_style: FLAT, head_height: 0.025 INCHES NOMINAL IN, head_diameter: 0.406 INCHES NOMINAL IN, mounting_method: SCREW, style_designator: COUNTERBORED SLEEVE, features_provided: OPEN SLEEVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-597-6074, 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
BACS12B-2
NSN: 5340-00-597-6074
FSC: 5340
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
head_styleFLAT
head_height0.025 INCHES NOMINAL IN
head_diameter0.406 INCHES NOMINAL IN
mounting_methodSCREW
style_designatorCOUNTERBORED SLEEVE
features_providedOPEN SLEEVE
nominal_thread_size0.190 INCHES IN
internal_drive_styleRECESSED
thread_quantity_per_inch32
thread_series_designatorUNF
hole_size_for_which_designed0.297 INCHES NOMINAL IN
screw_minimum_length_for_which_designed0.625 INCHES IN
NSN5340-00-597-6074
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BACS12B-2 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
KEY FEATURES
•
MOUNTING METHOD: SCREW
•
SCREW MINIMUM LENGTH FOR WHICH DESIGNED: 0.625 INCHES IN
•
HOLE SIZE FOR WHICH DESIGNED: 0.297 INCHES NOMINAL IN
•
FEATURES PROVIDED: OPEN SLEEVE
•
MATERIAL THICKNESS RANGE FOR WHICH DESIGNED: +0.045 TO 0.080 INCHES IN
•
THREAD QUANTITY PER INCH: 32
•
HEAD DIAMETER: 0.406 INCHES NOMINAL IN
•
HEAD STYLE: FLAT
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODSCREW
SCREW MINIMUM LENGTH FOR WHICH DESIGNED0.625 INCHES IN
HOLE SIZE FOR WHICH DESIGNED0.297 INCHES NOMINAL IN
FEATURES PROVIDEDOPEN SLEEVE
MATERIAL THICKNESS RANGE FOR WHICH DESIGNED+0.045 TO 0.080 INCHES IN
THREAD QUANTITY PER INCH32
HEAD DIAMETER0.406 INCHES NOMINAL IN
HEAD STYLEFLAT
HEAD HEIGHT0.025 INCHES NOMINAL IN
STYLE DESIGNATORCOUNTERBORED SLEEVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
C0JZ5230AInterchangeable
interchangeable cross-reference
interchangeable
ABT6981Interchangeable
interchangeable cross-reference
interchangeable
298-5085-92Interchangeable
interchangeable cross-reference
interchangeable
100QPTV20MInterchangeable
interchangeable cross-reference
interchangeable
VT20BInterchangeable
interchangeable cross-reference
interchangeable
9T92Y28G2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BACS12B-2?
BACS12B-2 is a FASTENER,FLARE LOCK.
What parts can replace BACS12B-2?
There are 11 known substitutes for BACS12B-2: C0JZ5230A, ABT6981, 298-5085-92 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BACS12B-2?
BACS12B-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-597-6074. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026