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ASTM A-105 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

THERMAL RELEASE,CIRCUIT BREAKER. Key specifications include material: STEEL, thickness: 1.120 INCHES NOMINAL IN, neck_height: 0.250 INCHES NOMINAL IN, flange_diameter: 7.500 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.880 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-083-8769, 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
ASTM A-105
NSN: 4730-00-083-8769
FSC: 4730
CAGE: 81346 — AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL
thickness1.120 INCHES NOMINAL IN
neck_height0.250 INCHES NOMINAL IN
flange_diameter7.500 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.880 INCHES NOMINAL IN
bolt_hole_quantity8
bolt_circle_diameter5.880 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, RAISED FACE (BLIND)
specification/standard_data80204-B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
face_seating_surface_conditionMACHINED
nominal_pipe_size_for_which_designed2.500 INCHES IN
NSN4730-00-083-8769
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ASTM A-105 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL OVERALL
•
LEG LENGTH: 2.000 INCHES NOMINAL ALL ENDS IN
•
CONNECTION STYLE: SOCKET (PIPE) ALL ENDS
•
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNED: SCHEDULE 80 ALL ENDS
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
LEG LENGTH2.000 INCHES NOMINAL ALL ENDS IN
CONNECTION STYLESOCKET (PIPE) ALL ENDS
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNEDSCHEDULE 80 ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
514-4645322 ITEM FL2Interchangeable
interchangeable cross-reference
interchangeable
ASTM A105Interchangeable
interchangeable cross-reference
interchangeable
20-1 ASTMA-105Interchangeable
interchangeable cross-reference
interchangeable
ANSI B16.11 1-1/4INInterchangeable
interchangeable cross-reference
interchangeable
5000S4823-64496REV3Interchangeable
interchangeable cross-reference
interchangeable
64-2 1/2 ASTMA105Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASTM A-105?
ASTM A-105 is a THERMAL RELEASE,CIRCUIT BREAKER.
What parts can replace ASTM A-105?
There are 11 known substitutes for ASTM A-105: 514-4645322 ITEM FL2, ASTM A105, 20-1 ASTMA-105 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ASTM A-105?
ASTM A-105 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-083-8769. 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.
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Last verified: July 2026