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PartsTable / COMPONENT / AN742-28
AN742-28 ✓ 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: STEEL COMP 1017 BAND, overall_width: 0.500 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, surface_treatment: CADMIUM BAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-598-0224, 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
AN742-28
NSN: 5340-00-598-0224
FSC: 5340
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialSTEEL COMP 1017 BAND
overall_width0.500 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
surface_treatmentCADMIUM BAND
material_thickness0.0285 INCHES MINIMUM AND 0.0355 INCHES MAXIMUM IN
loop_inside_diameter1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND B CLASS
material_document_and_classificationQQ-S-636,COND 4 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end1.498 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole1.280 INCHES NOMINAL IN
NSN5340-00-598-0224
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AN742-28 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
•
SURFACE TREATMENT: CADMIUM BAND
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 1.280 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.498 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-636,COND 4 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND B CLASS
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL: STEEL COMP 1017 BAND
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM BAND
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE1.280 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END1.498 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-636,COND 4 FED SPEC SINGLE MATERIAL RESPONSE BAND
NONDEFINITIVE SPEC/STD DATA1 TYPE AND B CLASS
OVERALL WIDTH0.500 INCHES NOMINAL IN
TONGUE HOLE TYPEROUND, UNTHREADED
MATERIALSTEEL COMP 1017 BAND
MATERIAL THICKNESS0.0285 INCHES MINIMUM AND 0.0355 INCHES MAXIMUM IN
STYLE DESIGNATORSINGLE LOOP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MS21103Upgraded Successor
successor cross-reference
successor
MS21103-28Upgraded Successor
successor cross-reference
successor
MILC8603Upgraded Successor
successor cross-reference
successor
99122Upgraded Successor
successor cross-reference
successor
MS21919G8Upgraded Successor
successor cross-reference
successor
5096D16Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN742-28?
AN742-28 is a CLAMP,LOOP.
What parts can replace AN742-28?
There are 20 known substitutes for AN742-28: MS21103, MS21103-28, MILC8603 and 17 more. Substitute compatibility should be verified for your specific system.
Is AN742-28 still available?
AN742-28 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