PartsTable
Technical Data Sheet
CTLKEYBAK#3 ✓ 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 CTLKEYBAK#3 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-787-0148, 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
CTLKEYBAK#3
NSN: 5340-00-787-0148
FSC: 5340
CAGE: 3D631 — INDEPENDENT HARDWARE INC (USA)
SPECIFICATIONS
Part NumberCTLKEYBAK#3
NSN5340-00-787-0148
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CTLKEYBAK#3 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 FEATURESKEY CHAIN REEL SHALL CONSIST OF A CASE, SPRING, CHAIN WITH SWIVEL END, RING OR CHUCK KEY AND A METAL LOOP BELT ATTACHMENT TO ACCOMODATE A-SNUG FIT ON A 1-3/4IN. WIDE BELT; CASE IS CORROSION RESISTING STEEL OR CHROME; CASE SIZE: 2-1/2IN. IN LENGTH, WIDTH OR DIAMETER; KEY RING IS 1-1/4IN. DIAMETER; KEY CHAIN LENGTH IS 21-3/4IN. MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
A-A-1040Upgraded Successor
successor cross-reference
successor
RR-K-795Upgraded Successor
successor cross-reference
successor
KEYBAK5Upgraded Successor
successor cross-reference
successor
AA406Interchangeable
interchangeable cross-reference
interchangeable
A202Interchangeable
interchangeable cross-reference
interchangeable
0007-023Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CTLKEYBAK#3?
CTLKEYBAK#3 is a CTLKEYBAK#3.
What parts can replace CTLKEYBAK#3?
There are 7 known substitutes for CTLKEYBAK#3: A-A-1040, RR-K-795, KEYBAK5 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CTLKEYBAK#3?
CTLKEYBAK#3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-787-0148. This indicates validated use in U.S. government and defense supply chains.
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