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Technical Data Sheet
PartsTable / COMPONENT / AN742D4
AN742D4 ✓ 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 CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.204 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024 BAND, overall_width: 0.500 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, material_thickness: 0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-200-2997, 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
AN742D4
NSN: 5340-00-200-2997
FSC: 5340
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024 BAND
overall_width0.500 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
loop_inside_diameter0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND A CLASS
material_document_and_classificationQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end0.645 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.457 INCHES NOMINAL IN
NSN5340-00-200-2997
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AN742D4 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
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.457 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A CLASS
•
MATERIAL: ALUMINUM ALLOY 2024 BAND
•
STYLE DESIGNATOR: SINGLE LOOP
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.645 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.457 INCHES NOMINAL IN
LOOP INSIDE DIAMETER0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A CLASS
MATERIALALUMINUM ALLOY 2024 BAND
STYLE DESIGNATORSINGLE LOOP
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A CLASS
DISTANCE FROM LOOP CENTER TO TONGUE END0.645 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024 BAND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
MATERIAL THICKNESS0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
6739844-17Upgraded Successor
successor cross-reference
successor
C8603ANDTYPE1ANDCLASSAUpgraded Successor
successor cross-reference
successor
24CUpgraded Successor
successor cross-reference
successor
754-22-2-8Upgraded Successor
successor cross-reference
successor
5340007269322Upgraded Successor
successor cross-reference
successor
AS5587D04Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN742D4?
AN742D4 is a CLAMP,LOOP.
What parts can replace AN742D4?
There are 18 known substitutes for AN742D4: 6739844-17, C8603ANDTYPE1ANDCLASSA, 24C and 15 more. Substitute compatibility should be verified for your specific system.
Is AN742D4 still available?
AN742D4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026