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65-1/2 SCHED 80 — Technical Data Sheet

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— · 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: COPPER ALLOY AND NICKEL ALLOY, stem_type: NONRISING, thickness: 0.560 INCHES NOMINAL IN, flow_angle: 90.0 DEGREES, leg_length: 2.120 INCHES NOMINAL FIRST END IN, sweep_type: SHORT. This part is cataloged in the Federal Logistics Information System under NSN 4730-01-022-3946, 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
65-1/2 SCHED 80
NSN: 4730-01-022-3946
FSC: 4730
CAGE: 34646 — ATI LADISH LLC DBA ATI WAH CHANG DIV ATI FORGED PRODUCTS - CUDAHY (USA)
SPECIFICATIONS
materialCOPPER ALLOY AND NICKEL ALLOY
stem_typeNONRISING
thickness0.560 INCHES NOMINAL IN
flow_angle90.0 DEGREES
leg_length2.120 INCHES NOMINAL FIRST END IN
sweep_typeSHORT
valve_size0.500 INCHES IN
bonnet_typeINSIDE SCREW
neck_height2.000 INCHES NOMINAL IN
temp_rating775.0 FAHRENHEIT NOMINAL DEGF
constructionSEAMLESS
flange_shapeROUND WITH HOLES ALL ENDS
NSN4730-01-022-3946
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 65-1/2 SCHED 80 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
S3209BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
G8897PC57InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
G15172PC50InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
S3263AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
HC-29N/0221InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
H-3373InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 65-1/2 SCHED 80?
65-1/2 SCHED 80 is a THERMAL RELEASE,CIRCUIT BREAKER.
What parts can replace 65-1/2 SCHED 80?
There are 36 known substitutes for 65-1/2 SCHED 80: S3209B, G8897PC57, G15172PC50 and 33 more. Substitute compatibility should be verified for your specific system.
Is 65-1/2 SCHED 80 still available?
65-1/2 SCHED 80 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: October 2026