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Technical Data Sheet
PartsTable / COMPONENT / NAS1397-3N
NAS1397-3N ✓ 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: 0.172 INCHES NOMINAL IN, material: PLASTIC POLYHEXAMETHYLENE AMIDE BAND, overall_width: 0.375 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, material_thickness: 0.050 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-902-9726, 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
NAS1397-3N
NSN: 5340-00-902-9726
FSC: 5340
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
diameter0.172 INCHES NOMINAL IN
materialPLASTIC POLYHEXAMETHYLENE AMIDE BAND
overall_width0.375 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.050 INCHES NOMINAL IN
loop_inside_diameter0.188 INCHES NOMINAL IN
material_document_and_classificationMIL-M-20693 TY 1 MIL SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end0.580 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.400 INCHES NOMINAL IN
NSN5340-00-902-9726
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS1397-3N 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: 0.400 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE LOOP
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL: PLASTIC POLYHEXAMETHYLENE AMIDE BAND
•
LOOP INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.050 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693 TY 1 MIL SPEC SINGLE MATERIAL RESPONSE BAND
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.580 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.400 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE LOOP
TONGUE HOLE TYPEROUND, UNTHREADED
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE BAND
LOOP INSIDE DIAMETER0.188 INCHES NOMINAL IN
MATERIAL THICKNESS0.050 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 TY 1 MIL SPEC SINGLE MATERIAL RESPONSE BAND
DISTANCE FROM LOOP CENTER TO TONGUE END0.580 INCHES NOMINAL IN
DIAMETER0.172 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
711625-2Upgraded Successor
successor cross-reference
successor
8496473Upgraded Successor
successor cross-reference
successor
214-1043P2Upgraded Successor
successor cross-reference
successor
5-16-6RUpgraded Successor
successor cross-reference
successor
103049-04Upgraded Successor
successor cross-reference
successor
GC500G5Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS1397-3N?
NAS1397-3N is a CLAMP,LOOP.
What parts can replace NAS1397-3N?
There are 30 known substitutes for NAS1397-3N: 711625-2, 8496473, 214-1043P2 and 27 more. Substitute compatibility should be verified for your specific system.
Is NAS1397-3N still available?
NAS1397-3N 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